Dr. Ohad Shemmer
University of North Texas
Physics
(940) 369-8110
Email:

Education

PhD, Tel Aviv University, 2005.
Major: Physics and Astronomy
Dissertation Title: 'Black Hole Mass, Accretion Rate, and Metal Abundances in Active Galactic Nuclei'
MS, Tel Aviv University, 1999.
Major: Physics and Astronomy
Dissertation Title: 'Periodic Microvariation of B416, a Luminous Blue Variable in M33'
BS, Tel Aviv University, 1997.
Major: Physics

Professional Positions

Academic - Post-Secondary
Associate Professor, University of North Texas. (2014 – Present).
Assistant Professor, University of North Texas. (2008 – 2014).
Research Associate, The Pennsylvania State University. (2006 – 2008).
Postdoctoral Researcher, The Pennsylvania State University. (2004 – 2006).
Research and Teaching Assistant, Tel Aviv University. (1997 – 2004).

Professional Memberships

NASA Endorsed Member, Athena Study Science Team Working Groups. (2015 – Present).

Member, NASA Extragalactic Database Users Committee. (2013 – Present).

Member, Active Galactic Nuclei Science Collaboration for the Large Synoptic Survey Telescope. (2006 – Present).

Member, American Astronomical Society. (2006 – Present).

Member, International X-ray Observatory Science Team Associate. (2008 – 2012).

Teaching

Teaching Experience

University of North Texas
CHEM 4900, Special Problems, 1 course.
PHYS 1062, Stars and the Universe, 28 courses.
PHYS 1710, Mechanics, 4 courses.
PHYS 2900, Special Problems, 1 course.
PHYS 4650, Introduction to Modern Astrophysics, 9 courses.
PHYS 4900, Special Problems, 2 courses.
PHYS 4910, Special Problems, 5 courses.
PHYS 4950, Senior Thesis, 10 courses.
PHYS 4951, Honors College Capstone Thesis, 1 course.
PHYS 4955, Senior Thesis Capstone, 7 courses.
PHYS 4980, Experimental Course, 2 courses.
PHYS 5900, Special Problems, 25 courses.
PHYS 5910, Special Problems, 3 courses.
PHYS 5920, Research Problems in Lieu of Thesis, 2 courses.
PHYS 5930, Research Problems in Lieu of Thesis, 1 course.
PHYS 5941, Colloquium, 7 courses.
PHYS 6900, Special Problems, 7 courses.
PHYS 6940, Individual Research, 1 course.
PHYS 6950, Doctoral Dissertation, 6 courses.

Directed Student Learning

Major Professor,"GNIRS-DQS: A Gemini Near-Infrared Spectrograph Distant Quasar Survey," Physics. (September 1, 2023 – Present).

Supervised Research,"Calibrating the Hard-X-ray Spectral Slope and Eddington Ratio in Quasars," Physics. (June 2023 – Present).

Major Professor,"Multiwavelength Diagnostics of Quasar Accretion Power," Physics. (September 1, 2016 – Present).

Supervised Research,"The Rest-Frame Optical Properties of Broad Absorption Line Quasars at High Redshift," Physics. (August 2022 – May 2023).

Supervised Research,"Shedding New Light on Weak Emission-Line Quasars in the C IV - Hβ Parameter Space," Physics. (August 2020 – May 2023).

Major Professor,"Near-Infrared Spectroscopy of High-Redshift Quasars using the UKIRT Observatory," Physics. (September 1, 2018 – May 14, 2023).

Major Professor,"GNIRS-DQS: A Gemini Near-Infrared Spectrograph Distant Quasar Survey," Physics. (September 1, 2017 – May 14, 2023).

Major Professor,"Exploratory X-Ray Monitoring of Luminous Radio-quiet Quasars at High Redshift," Physics. (September 1, 2018 – December 18, 2022).

Supervised Research,"Predicting C IV velocity offset from entire quasar UV spectrum," Physics. (August 2021 – May 2022).

Supervised Research,"Assessing emission-line effects on quasar color selection," Physics. (2019 – 2020).

Supervised Research,"Testing the Relevance of Mergers and Environment for the Fastest Growing Black Holes in the Most Intensely Star Forming Galaxies," Physics. (January 1, 2018 – August 31, 2018).

Supervised Research, Physics. (2016 – 2017).

Research

Published Intellectual Contributions

Book
Shemmer, O. (2009). LSST Science Book, Version 2.0. 596. ARXIV. https://arxiv.org/abs/0912.0201
Conference Proceeding
Parrott, L., Shemmer, O., Marlar, A. (2024). Calibrating the X-ray Spectral Slope-Eddington Ratio Correlation Using Reverberation Mapping Measurements of Supermassive Black Hole Masses in Quasars. 56(2), . American Astronomical Society, AAS Meeting #243, id.104.28. https://ui.adsabs.harvard.edu/abs/2024AAS...24310428P/abstract
Ahmed, H., Shemmer, O., Matthews, B., Dix, C., Ha, T., Richards, G., Brotherton, M., Myers, A., Brandt, W., Ferrero, G., Gallagher, S., Green, R., Lira, P., McLane, J., Plotkin, R., Runnoe, J., Schneider, D., Strauss, M. (2024). Gemini Near Infrared Spectrograph - Distant Quasar Survey: Rest-Frame Ultraviolet-Optical Spectral Properties of Broad Absorption Line Quasars. 56(2), . American Astronomical Society, AAS Meeting #243, id.104.29. https://ui.adsabs.harvard.edu/abs/2024AAS...24310429A/abstract
Maithil, J., Brotherton, M., Shemmer, O., Du, P., Wang, J., Luo, B., Gallagher, S., Chen, H., Li, Y., Myers, A., McLane, J., Dix, C., Matthews, B., Nemmen, R. (2023). Quasars with highly accreting black holes: their X-ray properties and modified prescription of single-epoch mass. 55(4), . AAS High Energy Astrophysics Division meeting #20, id. 100.43. https://ui.adsabs.harvard.edu/abs/2023HEAD...2010043M/abstract
Shemmer, O., Ha, T., Dix, C., Matthews, B., Brotherton, M., Myers, A., Richards, G., Maithil, J., Anderson, S., Brandt, W., Fan, X., Gallagher, S., Green, R., Lira, P., Luo, B., Netzer, H., Plotkin, R., Runnoe, J., Schneider, D., Strauss, M., Trakhtenbrot, B., Wu, J. (2023). Shedding New Light on Weak Emission-Line Quasars in the C IV-Hβ Parameter Space. 55(2), . American Astronomical Society, AAS Meeting #241, id.301.04. https://ui.adsabs.harvard.edu/abs/2023AAS...24130104S/abstract
Thomas, M., Shemmer, O., Brandt, W., Paolillo, M., Kaspi, S., Vignali, C., Lira, P., Schneider, D. (2020). Exploratory X-Ray Monitoring of Luminous Radio-Quiet Quasars at High Redshift: Long Term Variability and Deep X-ray Images. 52(1), . American Astronomical Society, AAS Meeting #235, id.305.11. https://ui.adsabs.harvard.edu/abs/2020AAS...23530511T/abstract
Matthews, B., Shemmer, O., Brotherton, M., Andruchow, I., Boroson, T., Brandt, W., Cellone, S., Dix, C., Ferrero, G., Gallagher, S., Green, R., Hennawi, J., Lira, P., Myers, A., Plotkin, R., Richards, G., Runnoe, J., Schneider, D., Shen, Y., Strauss, M., Willott, C., Wills, B. (2020). Gemini Near Infrared Spectrograph Distant Quasar Survey: Initial Results. 52(1), . American Astronomical Society, AAS Meeting #235, id.381.06. https://ui.adsabs.harvard.edu/abs/2020AAS...23538106M/abstract
Marlar, A., Shemmer, O., Brotherton, M., Richards, G., Dix, C. (2020). Multiwavelength Diagnostics of Quasar Accretion Power. 52(1), . American Astronomical Society, AAS Meeting #235, id.304.18. https://ui.adsabs.harvard.edu/abs/2020AAS...23530418M/abstract
Dix, C., Shemmer, O., Brotherton, M., Green, R., Mason, M., Myers, A. (2020). Prescriptions for Correcting Ultraviolet-Based Redshifts for Luminous Quasars at z > 2.15. 52(1), . American Astronomical Society, AAS Meeting #235, id.305.29. https://ui.adsabs.harvard.edu/abs/2020AAS...23530529D/abstract
Matthews, B., Shemmer, O., Brotherton, M., Andruchow, I., Boroson, T., Brandt, W., Cellone, S., Ferrero, G., Gallagher, S., Green, R., Hennawi, J., Lira, P., Myers, A., Plotkin, R., Richards, G., Runnoe, J., Schneider, D., Shen, Y., Strauss, M., Willott, C., Wills, B. (2019). Gemini Near Infrared Spectrograph Distant Quasar Survey: The First Year. American Astronomical Society, AAS Meeting #233, id.243.38. http://adsabs.harvard.edu/abs/2019AAS...23324338M
Marlar, A., Shemmer, O., Brotherton, M., Richards, G. (2019). Identifying a Robust and Practical Quasar Accretion-Rate Indicator Using the Chandra Archive. American Astronomical Society, AAS Meeting #233, id.243.39. http://adsabs.harvard.edu/abs/2019AAS...23324339M
Matthews, B., Shemmer, O., Brotherton, M., Andruchow, I., Boroson, T., Brandt, W., Cellone, S., Ferrero, G., Gallagher, S., Green, R., Hennawi, J., Lira, P., Myers, A., Plotkin, R., Richards, G., Runnoe, J., Schneider, D., Shen, Y., Strauss, M., Willott, C., Wills, B. (2018). GNIRS-DQS: A Gemini Near Infrared Spectrograph Distant Quasar Survey. American Astronomical Society, AAS Meeting #232, id.318.09. http://adsabs.harvard.edu/abs/2018AAS...23231809M
Rivera, A., Richards, G., Shemmer, O., Gallagher, S. (2018). Investigating Quasar Diversity using UV, X-ray, and Emission-line Properties. American Astronomical Society, AAS Meeting #231, id.250.24. http://adsabs.harvard.edu/abs/2018AAS...23125024B
Marlar, A., Shemmer, O., Anderson, S., Brandt, W., Diamond-Stanic, A., Fan, X., Luo, B., Plotkin, R., Richards, G., Schneider, D., Wu, J. (2018). Steep Hard-X-ray Spectra Indicate Extremely High Accretion Rates in Weak Emission-Line Quasars. American Astronomical Society, AAS Meeting #232, id.318.10. http://adsabs.harvard.edu/abs/2018AAS...23231810M
Marlar, A., Shemmer, O., Brotherton, M., Richards, G. (2017). Searching for Robust Accretion Rate Diagnostics in Distant Quasars. American Astronomical Society, AAS Meeting #230, id.313.01. http://adsabs.harvard.edu/abs/2017AAS...23031301M
Lehmer, B., Basu-Zych, A., Mineo, S., Brandt, W., Eufrasio, R., Fragos, T., Hornschemeier, A., Luo, B., Xue, Y., Bauer, F., Gilfanov, M., Kalogera, V., Ranalli, P., Schneider, D., Shemmer, O., Tozzi, P., Trump, J., Vignali, C., Wang, J., Yukita, M., Zezas, A. (2016). Cosmic Evolution of X-ray Binary Populations: Probes of Changing Chemistry and Aging Stellar Populations in the Universe. American Astronomical Society, AAS Meeting #227, id.401.08. http://adsabs.harvard.edu/abs/2016AAS...22740108L
Brandt, W., Luo, B., Hall, P., Wu, J., Anderson, S., Garmire, G., Gibson, R., Plotkin, R., Richards, G., Schneider, D., Shemmer, O., Shen, Y. (2016). Exceptional X-ray Weak Quasars: Implications for Accretion Flows and Emission-Line Formation. American Astronomical Society, AAS Meeting #227, id.318.04. http://adsabs.harvard.edu/abs/2016AAS...22731804B
Paolillo, M., Papadakis, I., Brandt, W., Xue, Y., Luo, B., Tozzi, P., Shemmer, O., Allevato, V., Bauer, F., Koekemoer, A., Vignali, C., Vito, F., Yang, G., Wang, J., Zheng, X. (2016). Probing AGN Accretion History Through X-Ray Variability. Active Galactic Nuclei 12: A Multi-Messenger Perspective (AGN12), Napoli, Italy, 26-29 September 2016, id.39. https://zenodo.org/record/163795#.WjiMvmWN2cg
Vito, F., Gilli, R., Vignali, C., Brandt, W., Comastri, A., Yang, G., Lehmer, B., Luo, B., Basu-Zych, A., Bauer, F., Cappelluti, N., Koekemoer, A., Mainieri, V., Paolillo, M., Ranalli, P., Shemmer, O., Trump, J., Wang, J. (2016). The deepest X-ray view of high-redshift galaxies: constraints on low-rate black hole accretion. Active Galactic Nuclei 12: A Multi-Messenger Perspective (AGN12), Napoli, Italy, 26-29 September 2016, id.41. https://zenodo.org/record/163798#.WjiG8GWN2cg
Shemmer, O. (2016). Weak Emission-line Quasars in the Context of a Modified Baldwin Effect. American Astronomical Society, AAS Meeting #227, id.318.05. http://adsabs.harvard.edu/abs/2016AAS...22731805S
Lehmer, B., Basu-Zych, A., Mineo, S., Brandt, W., Eufrasio, R., Fragos, T., Hornschemeier, A., Luo, B., Xue, Y., Bauer, F., Gilfanov, M., Kalogera, V., Ranalli, P., Schneider, D., Shemmer, O., Tozzi, P., Trump, J., Vignali, C., Wang, J., Yukita, M., Zezas, A. (2016). X-ray Evolution of Normal Galaxies in the 6 Ms Chandra Deep Field-South. American Astronomical Society, HEAD meeting #15, id.104.02. http://adsabs.harvard.edu/abs/2016HEAD...1510402L
Brandt, W., Luo, B., Hall, P., Wu, J., Anderson, S., Garmire, G., Gibson, R., Just, D., Plotkin, R., Richards, G., Schneider, D., Shemmer, O., Shen, Y. (2015). Exceptional X-ray Weak Quasars: Implications for Accretion Flows. APS April Meeting 2015, abstract #X14.006. http://adsabs.harvard.edu/abs/2015APS..APRX14006B
Plotkin, R., Shemmer, O., Trakhtenbrot, B., Anderson, S., Brandt, W., Fan, X., Gallo, E., Lira, P., Luo, B., Richards, G., Wu, J. (2015). New Insights on Weak Emission Line Quasars from X-shooter Spectroscopy. American Astronomical Society, AAS Meeting #225, id.303.01. http://adsabs.harvard.edu/abs/2015AAS...22530301P
Shemmer, O. (2014). http://xmm.esac.esa.int/external/xmm_science/workshops/2014symposium/
Shemmer, O. (2014). The XMM-Newton View of Weak Emission-Line Quasars.
Shemmer, O. (2013). AGN Science with the LSST.
Shemmer, O. (2013). Extreme Star Formation in the Host Galaxies of the Fastest Growing Supermassive Black Holes at z=4.8.
Shemmer, O. (2012). Exploratory X-ray Monitoring of High Redshift Radio-Quiet Quasars. American Astronomical Society, AAS Meeting #219, id.109.04. http://adsabs.harvard.edu/abs/2012AAS...21910904S
Shemmer, O. (2012). Low-luminosity Blazars in WISE: A Mid-infrared View of Unification. American Astronomical Society, AAS Meeting #219, id.131.06. http://adsabs.harvard.edu/abs/2012AAS...21913106P
Shemmer, O. (2012). Observing the Fast Growth of Black Holes at z~4.8. American Astronomical Society, AAS Meeting #219, id.403.05.
Shemmer, O. (2012). PHL 1811 Analogs: A Population of X-ray Weak Quasars. 460, . San Francisco: ASP Conference Series, Astronomical Society of the Pacific, 2012., p.42. http://articles.adsabs.harvard.edu/cgi-bin/nph-iarticle_query?2012ASPC..460...42W&data_type=PDF_HIGH&whole_paper=YES&type=PRINTER&filetype=.pdf
Shemmer, O. (2011). AGN Science with LSST. American Astronomical Society, AAS Meeting #217, id.252.17; Bulletin of the American Astronomical Society, Vol. 43, 2011. http://adsabs.harvard.edu/abs/2011AAS...21725217G
Shemmer, O. (2011). Did Weak-line Quasars Just Begin an Active Phase?. American Astronomical Society, AAS Meeting #217, id.230.02; Bulletin of the American Astronomical Society, Vol. 43, 2011. http://adsabs.harvard.edu/abs/2011AAS...21723002P
Shemmer, O. (2011). Exploratory X-ray Monitoring of High Redshift Radio-Quiet Quasars. The X-ray Universe 2011, Presentations of the Conference held in Berlin, Germany, 27-30 June 2011. http://xmm.esac.esa.int/external/xmm_science/workshops/2011symposium/
Shemmer, O. (2011). In Search of Quasar Host Galaxies. American Astronomical Society, AAS Meeting #217, id.421.04; Bulletin of the American Astronomical Society, Vol. 43, 2011. http://adsabs.harvard.edu/abs/2011AAS...21742104Y
Shemmer, O. (2011). The X-Ray Properties of Typical High-redshift Radio-loud Quasars. The X-ray Universe 2011, Presentations of the Conference held in Berlin, Germany, 27-30 June 2011. http://xmm.esac.esa.int/external/xmm_science/workshops/2011symposium/
Shemmer, O. (2011). Weak-Line Quasars at High Redshift: Extremely High Accretion Rates or Anemic Broad-Line Regions?. American Astronomical Society, AAS Meeting #217, id.230.01; Bulletin of the American Astronomical Society, Vol. 43, 2011. http://adsabs.harvard.edu/abs/2011AAS...21723001S
Shemmer, O. (2010). Active-Galaxy Science withthe Large Synoptic Survey Telescope. American Astronomical Society, AAS Meeting #215, id.401.16; Bulletin of the American Astronomical Society, Vol. 42, p.220. http://adsabs.harvard.edu/abs/2010AAS...21540116R
Shemmer, O. (2010). Chandra Scrutiny of Radio-Shy BL Lac Candidates From The SDSS. American Astronomical Society, HEAD meeting #11, id.33.05; Bulletin of the American Astronomical Society, Vol. 41, p.706. http://adsabs.harvard.edu/abs/2010HEAD...11.3305P
Shemmer, O. (2010). In Search of Star-Forming Regions in the Host Galaxiesof Nearby Quasars. American Astronomical Society, AAS Meeting #215, id.411.04; Bulletin of the American Astronomical Society, Vol. 42, p.240. http://adsabs.harvard.edu/abs/2010AAS...21541104Y
Shemmer, O. (2010). Probing the Evolution of Black Hole Mass Through Cosmic Time.
Shemmer, O. (2010). The Optical to Mid-Infrared Spectral Energy Distribution of Weak-Emission Line Quasars. American Astronomical Society, AAS Meeting #215, id.433.16; Bulletin of the American Astronomical Society, Vol. 42, p.372. http://adsabs.harvard.edu/abs/2010AAS...21543316L
Shemmer, O. (2010). The X-Ray Properties of the Optically Brightest Mini-BAL Quasarsfrom the Sloan Digital Sky Survey Data Release 5. American Astronomical Society, AAS Meeting #215, id.411.31; Bulletin of the American Astronomical Society, Vol. 42, p.245. http://adsabs.harvard.edu/abs/2010AAS...21541131C
Shemmer, O. (2009). Active-Galaxy Science with the Large Synoptic Survey Telescope. American Astronomical Society, AAS Meeting #213, id.460.12; Bulletin of the American Astronomical Society, Vol. 41, p.368. http://adsabs.harvard.edu/abs/2009AAS...21346012B
Shemmer, O. (2009). Multiwavelength Insights into the Nature of Weak Emission-Line Quasars at High Redshift. American Astronomical Society, AAS Meeting #213, id.316.07; Bulletin of the American Astronomical Society, Vol. 41, p.294. http://adsabs.harvard.edu/abs/2009AAS...21331607S
Shemmer, O. (2007). The Hard X-ray Spectral Slope as an Accretion-Rate Indicator in Radio-Quiet Active Galactic Nuclei. 2007 AAS/AAPT Joint Meeting, American Astronomical Society Meeting 209, id.34.04; Bulletin of the American Astronomical Society, Vol. 38, p.951. http://adsabs.harvard.edu/abs/2006AAS...209.3404S
Shemmer, O. (2007). The Realm of the First Quasars in the Universe: The X-ray View', in 'The Central Engine of Active Galactic Nuclei. The Central Engine of Active Galactic Nuclei, ASP Conference Series, Vol. 373, proceedings of the conference held 16-21 October, 2006 at Xi'an Jioatong University, Xi'an, China. http://adsabs.harvard.edu/abs/2007ASPC..373..724V
Shemmer, O. (2006). New XMM-Newton Spectroscopy of the Most Luminous and Distant Quasars. Proceedings of the The X-ray Universe 2005 (ESA SP-604). 26-30 September 2005, El Escorial, Madrid, Spain. Editor: A. Wilson, p.551. http://adsabs.harvard.edu/abs/2006ESASP.604..551S
Shemmer, O. (2006). The Hard X-ray Spectral Slope as an Accretion-Rate Indicator in Radio-Quiet Active Galactic Nuclei. American Astronomical Society, HEAD meeting #9, id.7.24; Bulletin of the American Astronomical Society, Vol. 38, p.353. http://adsabs.harvard.edu/abs/2006HEAD....9.0724S
Shemmer, O. (2004). A Metallicity-Accretion-Rate Relation in AGN, in 'AGN Physics with the SDSS'. AGN Physics with the Sloan Digital Sky Survey, Proceedings of a conference held in Princeton, NJ, USA, 27-31 July 2003, Edited by Gordon T. Richards and Patrick B. Hall, ASP Conference Series, Volume 311. San Francisco: Astronomical Society of the Pacific, 2004., p.407. http://articles.adsabs.harvard.edu/cgi-bin/nph-iarticle_query?2004ASPC..311..407S&data_type=PDF_HIGH&whole_paper=YES&type=PRINTER&filetype=.pdf
Shemmer, O. (2004). Reverberation Mapping of High-Redshift, High-Luminosity Quasars, in 'Coevolution of Black Holes and Galaxies'. Coevolution of Black Holes and Galaxies, from the Carnegie Observatories Centennial Symposia. Carnegie Observatories Astrophysics Series. Edited by L. C. Ho, 2004. Pasadena: Carnegie Observatories. http://adsabs.harvard.edu/abs/2004cbhg.sympE..30K
Kaspi, S., Netzer, H., Maoz, D., Shemmer, O., Brandt, W., Schneider, D. (2003). Reverberation Mapping of High-Redshift, High-Luminosity Quasars. 290, 615. Astronomical Society of the Pacific. http://articles.adsabs.harvard.edu/cgi-bin/nph-iarticle_query?2003ASPC..290..615K&data_type=PDF_HIGH&whole_paper=YES&type=PRINTER&filetype=.pdf
Shemmer, O., Netzer, H., Oliva, E., Maiolino, R. (2003). The Metallicity-Luminosity Relationship in AGN: The Case of Narrow Line Seyfert 1 Galaxies. 290, 255. Astronomical Society of the Pacific. http://articles.adsabs.harvard.edu/cgi-bin/nph-iarticle_query?2003ASPC..290..255S&data_type=PDF_HIGH&whole_paper=YES&type=PRINTER&filetype=.pdf
Brosch, N., Shemmer, O. (2000). Airglow and Meteor Rates over Israel during the 1999 Leonid Shower. Earth, Moon, and Planets, v. 82/83, p. 535-543 (1998). https://link.springer.com/article/10.1023%2FA%3A1017073003943
Journal Article
Maithil, J., Brotherton, M., Shemmer, O., Luo, B., Du, P., Wang, J., Chen, H., Gallagher, S., Li, Y., Nemmen, R. (2024). X-ray properties of reverberation-mapped AGNs with super-Eddington accreting massive black holes. Monthly Notices of the Royal Astronomical Society. 528(2), 1542-1554. Oxford University Press. https://watermark.silverchair.com/stae115.pdf?token=AQECAHi208BE49Ooan9kkhW_Ercy7Dm3ZL_9Cf3qfKAc485ysgAAA1UwggNRBgkqhkiG9w0BBwagggNCMIIDPgIBADCCAzcGCSqGSIb3DQEHATAeBglghkgBZQMEAS4wEQQMcab-j4y-AfMlg5UdAgEQgIIDCAhZw-_uZcTGXNvQjA_HhzUcpKLWpWs6ktRXMr7N5UJpmsfihyfT7vTaeD6z3zbj4AxXaghdpjVTYuGmwN8XDr1A_4Jo3Wso3IosjJV83n0GcC8vP1_7pNjGfsv_2v0bozodz4Nt80uy5LzdzeMAxnEeE-K_btov-Inpulr4V70XZHfovLY2q8H5JLxsBGKVMJ4ro4Aj5vWsEFkiX7UeCPQ0Ay7KpNLUw7EoX2heOkqwoHX2obsbD4Cb06HmHUPyIGGdsNKSJPr_V581dmvABWJRxCd1gIab1ZFOMSopIj40oGdqIn_dVvrieKK2Z7EI_sZcMH_CpQauJ5-V_nBtMj7q_HQRNLnxRWfDBpdPK29mxQxU5y4-J4_VvtGoaGfhexgFGF4vkGtbRN_vUuBiDeyGf_5CvwzVbERFrdoo-dHrr_Nmfiq4uQXF-fTSGER91BFHQPJ5F36ZwkqopLKns8wgzfSLxJvf2HtzAVwnvtNe6KfMnJ92Lz-_mSlW4FVqtUJJI6h2rKlMAF2imMPjvrmhylEGDfRjxuvhii4G4Z2PhcsHabL7rbZdDTVlBX9LqqQhVvQ0TUQRVbJvCRYdT4spixg8C98Ku-88pTZcCjiL38ikjTJIQzFj7YkyKL38fnSrIKwPQ8oJXUJf_G94IwhEYkiCoiSmtxk2D5na_OzdKH_J74f17za9mNQlP6ldyJrGaBrbmZgYW36tnQjbo1i3jR01uNOfRIWVlxMc-JrByeiYFdUQ8iXSeuis4-3nbh1qoY9ntHadWWgzNx0Bq80ETp_6ngWfapP1mL4slKCzLHRx7wUrEXi_HV96VyqzeV1pysQkn5Dchp89FQ192YOVdwSjaXS1wBOPhw5XQwf9OAIIpGGZVGi9ksupeUXcEsfp0Qi3r-BYM_3YYtVDE5svlA_WDofs6otBdzBymqH0EOSI1tSvs0RFlw2axEkCDiHV0nH8vFNUPEJ3Z6tt816KIQfyLFnckiR77cM-SvX9-7Ot7PvVaWDp5MfxgmaO_g0CD_rgQQC-
Thomas, M., Shemmer, O., Trakhtenbrot, B., Lira, P., Netzer, H., Simmons, B., Ilan, N. (2023). Searching for the Role of Mergers in Fast and Early SMBH Growth: Morphological Decomposition of Quasars and Their Hosts at z ∼ 4.8. The Astrophysical Journal. 955(1), 15. AAS. https://iopscience.iop.org/article/10.3847/1538-4357/acebc9/pdf
Matthews, B., Dix, C., Shemmer, O., Brotherton, M., Myers, A., Andruchow, I., Brandt, W. N., Gallagher, S., Green, R., Lira, P., McLane, J., Plotkin, R., Richards, G., Runnoe, J., Schneider, D., Strauss, M. (2023). Gemini Near Infrared Spectrograph - Distant Quasar Survey: Augmented Spectroscopic Catalog and a Prescription for Correcting UV-Based Quasar Redshifts. The Astrophysical Journal. 950(2), 95. AAS. https://iopscience.iop.org/article/10.3847/1538-4357/acd04c/pdf
Dix, C., Matthews, B., Shemmer, O., Brotherton, M., Myers, A., Andruchow, I., Brandt, W. N., Ferrero, G., Green, R., Lira, P., Plotkin, R., Richards, G., Schneider, D. (2023). Gemini Near Infrared Spectrograph - Distant Quasar Survey: Prescriptions for Calibrating UV-Based Estimates of Supermassive Black Hole Masses in High-Redshift Quasars. The Astrophysical Journal. 950(2), 96. AAS. https://iopscience.iop.org/article/10.3847/1538-4357/acd04b/pdf
Ha, T., Dix, C., Matthews, B., Shemmer, O., Brotherton, M., Myers, A., Richards, G., Maithil, J., Anderson, S., Brandt, W., Diamond-Stanic, A., Fan, X., Gallagher, S., Green, R., Lira, P., Luo, B., Netzer, H., Plotkin, R., Runnoe, J., Schneider, D., Strauss, M., Trakhtenbrot, B., Wu, J. (2023). Shedding New Light on Weak Emission-Line Quasars in the C IV-Hβ Parameter Space. The Astrophysical Journal. 950(2), 97. AAS. https://iopscience.iop.org/article/10.3847/1538-4357/acd04d/pdf
Paolillo, M., Papadakis, I., Brandt, W. N., Bauer, F. E., Lanzuisi, G., Allevato, V., Shemmer, O., Zheng, X. C., De Cicco, D., Gilli, R., Luo, B., Thomas, M., Tozzi, P., Vito, F., Xue, Y. Q. (2023). The universal shape of the X-ray variability power spectrum of AGN up to z∼3. Astronomy & Astrophysics. 673, A68. EDP Sciences. https://www.aanda.org/articles/aa/pdf/2023/05/aa45291-22.pdf
Yu, L., Luo, B., Brandt, W. N., Bauer, F. E., De Cicco, D., Fabian, A., Gilli, R., Koekemoer, A., Paolillo, M., Schneider, D. P., Shemmer, O., Tozzi, P., Trump, J., Vignali, C., Vito, F., Wang, J. X., Xue, Y. Q. (2023). X-ray Unveiling Events in a z ≈ 1.6 Active Galactic Nucleus in the 7 Ms Chandra Deep Field-South. The Astrophysical Journal. 949(1), 20. AAS. https://iopscience.iop.org/article/10.3847/1538-4357/acc17e/pdf
Vito, F., Mignoli, M., Gilli, R., Brandt, W. N., Shemmer, O., Bauer, F. E., Bisogni, S., Luo, B., Marchesi, S., Nanni, R., Zamorani, G., Comastri, A., Cusano, F., Gallerani, S., Vignali, C., Lanzuisi, G. (2022). An X-ray fading, UV brightening QSO at z ≈ 6. Astronomy & Astrophysics. 663(A159), 14. EDP Sciences. https://www.aanda.org/articles/aa/pdf/2022/07/aa43403-22.pdf
Maithil, J., Brotherton, M. S., Shemmer, O., Du, P., Wang, J., Myers, A. D., McLane, J. N., Dix, C., Matthews, B. M. (2022). Systematically smaller single-epoch quasar black hole masses using a radius-luminosity relationship corrected for spectral bias. Monthly Notices of the Royal Astronomical Society. 515(1), 491-506. Oxford Academic. https://academic.oup.com/mnras/article-abstract/515/1/491/6617998?redirectedFrom=fulltext
Rivera, A. B., Richards, G. T., Gallagher, S. C., McCaffrey, T. V., Rankine, A. L., Hewett, P. C., Shemmer, O. (2022). Exploring Changes in Quasar Spectral Energy Distributions across C IV Parameter Space. The Astrophysical Journal. 931(2), 19. IOP. https://iopscience.iop.org/article/10.3847/1538-4357/ac6a5d/pdf
Chen, T. X., including 44 co-authors, e., Shemmer, O. (2022). Best Practices for Data Publication in the Astronomical Literature. The Astrophysical Journal Supplement. 260(1), 13. IOP. https://iopscience.iop.org/article/10.3847/1538-4365/ac6268/pdf
Marlar, A., Shemmer, O., Brotherton, M. S., Richards, G. T., Dix, C. (2022). Can X-Ray Observations Improve Optical-UV-based Accretion-rate Estimates for Quasars?. The Astrophysical Journal. 931(1), 10. IOP. https://iopscience.iop.org/article/10.3847/1538-4357/ac5f58/pdf
Paul, J. D., Plotkin, R. M., Shemmer, O., Anderson, S. F., Brandt, W. N., Fan, X., Gallo, E., Luo, B., Ni, Q., Richards, G. T., Schneider, D. P., Wu, J., Yi, W. (2022). Connecting Low- and High-redshift Weak Emission-line Quasars via Hubble Space Telescope Spectroscopy of Lyα Emission. The Astrophysical Journal. 929(1), 78. American Astronomical Society. https://iopscience.iop.org/article/10.3847/1538-4357/ac5bd6/pdf
Ni, Q., Brandt, W., Luo, B., Garmire, G., Hall, P., Plotkin, R., Shemmer, O., Timlin, J., Vito, F., Wu, J., Yi, W. (2022). Sensitive Chandra coverage of a representative sample of weak-line quasars: revealing the full range of X-ray properties. Monthly Notices of the Royal Astronomical Society. 511(4), 5251–5264. Oxford University Press. https://academic.oup.com/mnras/article-abstract/511/4/5251/6529249?redirectedFrom=fulltext
Bianco, F. B., including 47 co-authors, e., Shemmer, O. (2022). Optimization of the Observing Cadence for the Rubin Observatory Legacy Survey of Space and Time: A Pioneering Process of Community-focused Experimental Design. The Astrophysical Journal Supplement. 258(1), 1. IOP. https://iopscience.iop.org/article/10.3847/1538-4365/ac3e72
Thomas, M. O., Shemmer, O., Brandt, W., Paolillo, M., Kaspi, S., Vignali, C., Lira, P., Schneider, D. (2021). Exploratory X-Ray Monitoring of Luminous Radio-quiet Quasars at High Redshift: Extended Time-series Analyses and Stacked Imaging Spectroscopy. The Astrophysical Journal. 923(1), 111. IOP. https://iopscience.iop.org/article/10.3847/1538-4357/ac2e00/pdf
Ni, Q., Brandt, W., Chen, C., Luo, B., Nyland, K., Yang, G., Zou, F., Aird, J., Alexander, D., Bauer, F., Lacy, M., Lehmer, B., Mallick, L., Salvato, M., Schneider, D., Tozzi, P., Traulsen, I., Vaccari, M., Vignali, C., Vito, F., Xue, Y., Banerji, M., Chow, K., Comastri, A., Del Moro, A., Gilli, R., Mullaney, J., Paolillo, M., Schwope, A., Shemmer, O., Sun, M., Timlin, J., Trump, J. (2021). The XMM-SERVS Survey: XMM-Newton Point-source Catalogs for the W-CDF-S and ELAIS-S1 Fields. The Astrophysical Journal Supplement. 256(1), 21. The American Astronomical Society. https://iopscience.iop.org/article/10.3847/1538-4365/ac0dc6/pdf
Kaspi, S., Brandt, W. N., Maoz, D., Netzer, H., Schneider, D. P., Shemmer, O., Grier, C. J. (2021). Taking a Long Look: A Two-decade Reverberation Mapping Study of High-luminosity Quasars. The Astrophysical Journal. 915(2), 129. The American Astronomical Society. https://iopscience.iop.org/article/10.3847/1538-4357/ac00aa/pdf
Richards, G. T., Plotkin, R. M., Hewett, P. C., Rankine, A. L., Rivera, A. B., Shen, Y., Shemmer, O. (2021). A Novel Test of Quasar Orientation. The Astrophysical Journal. 914(1), L14. The American Astronomical Society. https://iopscience.iop.org/article/10.3847/2041-8213/ac0256/pdf
Vito, F., Brandt, W., Ricci, F., Congiu, E., Connor, T., Banados, E., Bauer, F., Gilli, R., Luo, B., Mazzucchelli, C., Mignoli, M., Shemmer, O., Vignali, C., Calura, F., Comastri, A., Decarli, R., Gallerani, S., Nanni, R., Brusa, M., Cappelluti, N., Civano, F., Zamorani, G. (2021). Chandra and Magellan/FIRE follow-up observations of PSO167-13: An X-ray weak QSO at z = 6.515. Astronomy & Astrophysics. 649(1), A133. EDP. https://www.aanda.org/articles/aa/pdf/2021/05/aa40399-21.pdf
Liu, H., Luo, B., Brandt, W., Brotherton, M., Gallagher, S., Ni, Q., Shemmer, O., Timlin, J. (2021). On the Observational Difference between the Accretion Disk-Corona Connections among Super- and Sub-Eddington Accreting Active Galactic Nuclei. The Astrophysical Journal. 910(2), 103. The American Astronomical Society. https://iopscience.iop.org/article/10.3847/1538-4357/abe37f/pdf
Matthews, B., Shemmer, O., Dix, C., Brotherton, M., Myers, A., Andruchow, I., Brandt, W. N., Ferrero, G. A., Gallagher, S. C., Green, R., Lira, P., Plotkin, R. M., Richards, G. T., Runnoe, J. C., Schneider, D. P., Shen, Y., Strauss, M. A., Wills, B. J. (2021). Placing High-redshift Quasars in Perspective: A Catalog of Spectroscopic Properties from the Gemini Near Infrared Spectrograph–Distant Quasar Survey. The Astrophysical Journal Supplement. 252(2), 15. The American Astronomical Society. https://iopscience.iop.org/article/10.3847/1538-4365/abc705/pdf
Nguyen, N. H., Lira, P., Trakhtenbrot, B., Netzer, H., Cicone, C., Maiolino, R., Shemmer, O. (2020). ALMA Observations of Quasar Host Galaxies at z ≃ 4.8. The Astrophysical Journal. 895(1), 74. The American Astronomical Society. https://iopscience.iop.org/article/10.3847/1538-4357/ab8bd3/pdf
Dix, C., Shemmer, O., Brotherton, M., Green, R., Mason, M., Myers, A. (2020). Prescriptions for Correcting Ultraviolet-Based Redshifts for Luminous Quasars at High Redshift. The Astrophysical Journal. 893(1), 14. The American Astronomical Society. https://iopscience.iop.org/article/10.3847/1538-4357/ab77b6/pdf
Ni, Q., Brandt, W., Yi, W., Luo, B., Timlin, J., Hall, P., Liu, H., Plotkin, R., Shemmer, O., Vito, F., Wu, J. (2020). An Extreme X-Ray Variability Event of a Weak-line Quasar. The Astrophysical Journal. 889(2), L37. The American Astronomical Society. https://iopscience.iop.org/article/10.3847/2041-8213/ab6d78/pdf
Vito, F., Brandt, W., Bauer, F., Gilli, R., Luo, B., Zamorani, G., Calura, F., Comastri, A., Mazzucchelli, C., Mignoli, M., Nanni, R., Shemmer, O., Vignali, C., Brusa, M., Cappelluti, N., Civano, F., Volonteri, M. (2019). Discovery of the first heavily obscured QSO candidate at z > 6 in a close galaxy pair. Astronomy & Astrophysics. 628(1), L6. EDP. https://www.aanda.org/articles/aa/pdf/2019/08/aa35924-19.pdf
Liu, H., Luo, B., Brandt, W., Brotherton, M., Du, P., Gallagher, S., Chen, H., Shemmer, O., Wang, J. (2019). SDSS J075101.42+291419.1: A Super-Eddington Accreting Quasar with Extreme X-Ray Variability. The Astrophysical Journal. 878(2), 79. AAS. https://iopscience.iop.org/article/10.3847/1538-4357/ab1d5b/pdf
Vito, F., Brandt, W., Bauer, F., Calura, F., Gilli, R., Luo, B., Shemmer, O., Vignali, C., Zamorani, G., Brusa, M., Civano, F., Comastri, A., Nanni, R. (2019). The X-ray properties of z > 6 quasars: no evident evolution of accretion physics in the first Gyr of the Universe. Astronomy & Astrophysics. 630(1), 16. EDP. https://www.aanda.org/articles/aa/pdf/2019/10/aa36217-19.pdf
Ni, Q., Brandt, W., Luo, B., Hall, P., Shen, Y., Anderson, S., Plotkin, R., Richards, G., Schneider, D., Shemmer, O., Wu, J. (2018). Connecting the X-ray properties of weak-line and typical quasars: testing for a geometrically thick accretion disk. Monthly Notices of the Royal Astronomical Society. 480(4), 5184-5202. OUP. https://academic.oup.com/mnras/article-abstract/480/4/5184/5060765?redirectedFrom=PDF
Vito, F., Brandt, W., Yang, G., Gilli, R., Luo, B., Vignali, C., Xue, Y., Comastri, A., Koekemoer, A., Lehmer, B., Liu, T., Paolillo, M., Ranalli, P., Schneider, D., Shemmer, O., Volonteri, M., Wang, J. (2018). High-redshift AGN in the Chandra Deep Fields: the obscured fraction and space density of the sub-L* population. Monthly Notices of the Royal Astronomical Society. 473(2), 2378-2406. OUP. https://academic.oup.com/mnras/article-abstract/473/2/2378/4243613?redirectedFrom=PDF
Vito, F., Brandt, W., Luo, B., Shemmer, O., Vignali, C., Gilli, R. (2018). No evidence for an Eddington-ratio dependence of X-ray weakness in BALQSOs. Monthly Notices of the Royal Astronomical Society. 479(4), 5335-5342. OUP. https://academic.oup.com/mnras/article-abstract/479/4/5335/5050063?redirectedFrom=PDF
Marlar, A., Shemmer, O., Anderson, S., Brandt, W., Diamond-Stanic, A., Fan, X., Luo, B., Plotkin, R., Richards, G., Schneider, D., Wu, J. (2018). Steep Hard-X-ray Spectra Indicate Extremely High Accretion Rates in Weak Emission-Line Quasars. The Astrophysical Journal. 865(2), 14. IOP. http://iopscience.iop.org/article/10.3847/1538-4357/aad812/pdf
Chen, C., Brandt, W., Luo, B., Ranalli, P., Yang, G., Alexander, D., Bauer, F., Kelson, D., Lacy, M., Nyland, K., Tozzi, P., Vito, F., Cirasuolo, M., Gilli, R., Jarvis, M., Lehmer, B., Paolillo, M., Schneider, D., Shemmer, O., Smail, I., Sun, M., Tanaka, M., Vaccari, M., Vignali, C., Xue, Y., Banerji, M., Chow, K., Haussler, B., Norris, R., Silverman, J., Trump, J. (2018). The XMM-SERVS survey: new XMM-Newton point-source catalogue for the XMM-LSS field. Monthly Notices of the Royal Astronomical Society. 478(2), 2132-2163. OUP. https://academic.oup.com/mnras/article-abstract/478/2/2132/4985846?redirectedFrom=PDF
Ding, N., Luo, B., Brandt, W., Paolillo, M., Yang, G., Lehmer, B., Shemmer, O., Schneider, D., Tozzi, P., Xue, Y., Zheng, X., Gu, Q., Koekemoer, A., Vignali, C., Vito, F., Wang, J. (2018). Variability-selected Low-luminosity Active Galactic Nuclei Candidates in the 7 Ms Chandra Deep Field-South. The Astrophysical Journal. 868(2), 17. IOP. http://iopscience.iop.org/article/10.3847/1538-4357/aaea60/pdf
Bauer, F., Treister, E., Schawinski, K., Schulze, S., Luo, B., Alexander, D., Brandt, W., Comastri, A., Forster, F., Gilli, R., Kann, D., Maeda, K., Nomoto, K., Paolillo, M., Ranalli, P., Schneider, D., Shemmer, O., Tanaka, M., Tolstov, A., Tominaga, N., Tozzi, P., Vignali, C., Wang, J., Xue, Y., Yang, G. (2017). A new, faint population of X-ray transients. Monthly Notices of the Royal Astronomical Society. 467(4), 4841-4857. OUP. https://academic.oup.com/mnras/article-abstract/467/4/4841/3038248?redirectedFrom=PDF
Carniani, S., Marconi, A., Maiolino, R., Feruglio, C., Brusa, M., Cresci, G., Cano-Diaz, M., Cicone, C., Balmaverde, B., Fiore, F., Ferrara, A., Gallerani, S., La Franca, F., Mainieri, V., Mannucci, F., Netzer, H., Piconcelli, E., Sani, E., Schneider, R., Shemmer, O., Testi, L. (2017). AGN feedback on molecular gas reservoirs in quasars at z~2.4. Astronomy & Astrophysics. 605(A105), 14. EDP Sciences. https://www.aanda.org/articles/aa/pdf/2017/09/aa30672-17.pdf
Trakhtenbrot, B., Lira, P., Netzer, H., Cicone, C., Maiolino, R., Shemmer, O. (2017). ALMA Observations Show Major Mergers Among the Host Galaxies of Fast-growing, High-redshift​ Supermassive​ Black Holes. The Astrophysical Journal. 836(1), 21. IOP. http://iopscience.iop.org/article/10.3847/1538-4357/836/1/8/pdf
Yang, G., Chen, C., Vito, F., Brandt, W., Alexander, D., Luo, B., Sun, M., Xue, Y., Bauer, F., Koekemoer, A., Lehmer, B., Liu, T., Schneider, D., Shemmer, O., Trump, J., Vignali, C., Wang, J. (2017). Black Hole Growth Is Mainly Linked to Host-galaxy Stellar Mass Rather Than Star Formation Rate. The Astrophysical Journal. 842(2), 72. IOP. http://iopscience.iop.org/article/10.3847/1538-4357/aa7564/pdf
Shemmer, O., Brandt, W., Paolillo, M., Kaspi, S., Vignali, C., Lira, P., Schneider, D. (2017). Exploratory X-Ray Monitoring of Luminous Radio-quiet Quasars at High Redshift: No Evidence for Evolution in X-Ray Variability. The Astrophysical Journal. 848(1), 46. IOP. http://iopscience.iop.org/article/10.3847/1538-4357/aa8b78/pdf
Trakhtenbrot, B., Lira, P., Netzer, H., Cicone, C., Maiolino, R., Shemmer, O. (2017). Fast-growing SMBHs in Fast-growing Galaxies, at High Redshifts: the Role of Major Mergers as Revealed by ALMA. 4, 49. FRP. https://www.frontiersin.org/articles/10.3389/fspas.2017.00049/full
Kaspi, S., Brandt, W., Maoz, D., Netzer, H., Schneider, D., Shemmer, O. (2017). Reverberation Mapping of High-Luminosity Quasars. 4, 31. FRP. https://www.frontiersin.org/articles/10.3389/fspas.2017.00049/full
Luo, B., Brandt, W., Xue, Y., Lehmer, B., Alexander, D., Bauer, F., Vito, F., Yang, G., Basu-Zych, A., Comastri, A., Gilli, R., Gu, Q., Hornschmeier, A., Koekemoer, A., Liu, T., Mainieri, V., Paolillo, M., Ranalli, P., Rosati, P., Schneider, D. P., Shemmer, O., Smail, I., Sun, M., Tozzi, P., Vignali, C., Wang, J. (2017). The Chandra Deep Field-South Survey: 7 Ms Source Catalogs. The Astrophysical Journal Supplement. 228(1), 30. IOP. http://iopscience.iop.org/article/10.3847/1538-4365/228/1/2/pdf
Paolillo, M., Papadakis, I., Brandt, W., Luo, B., Xue, Y., Tozzi, P., Shemmer, O., Allevato, V., Bauer, F., Comastri, A., Gilli, R., Koekemoer, A., Liu, T., Vignali, C., Vito, F., Yang, G., Wang, J., Zheng, X. (2017). Tracing the accretion history of supermassive black holes through X-ray variability: results from the ChandraDeep Field-South. Monthly Notices of the Royal Astronomical Society. 471(4), 4398-4411. OUP. https://academic.oup.com/mnras/article-abstract/471/4/4398/3965843?redirectedFrom=PDF
Liu, T., Tozzi, P., Wang, J., Brandt, W., Vignali, C., Xue, Y., Schneider, D., Comastri, A., Yang, G., Bauer, F., Paolillo, M., Luo, B., Gilli, R., Wang, Q., Giavalisco, M., Ji, Z., Alexander, D., Mainieri, V., Shemmer, O., Koekemoer, A., Risaliti, G. (2017). X-Ray Spectral Analyses of AGNs from the 7Ms Chandra Deep Field-South Survey: The Distribution, Variability, and Evolutions of AGN Obscuration. The Astrophysical Journal Supplement. 232(1), 8. IOP. http://iopscience.iop.org/article/10.3847/1538-4365/aa7847/pdf
Carniani, S., Marconi, A., Maiolino, R., Balmaverde, B., Brusa, M., Cano-Díaz, M., Cicone, C., Comastri, A., Cresci, G., Fiore, F., Feruglio, C., La Franca, F., Mainieri, V., Mannucci, F., Nagao, T., Netzer, H., Piconcelli, E., Risaliti, G., Schneider, R., Shemmer, O. (2016). Fast outflows and star formation quenching in quasar host galaxies. Astronomy & Astrophysics. 591(A28), 9. EDP Sciences. https://www.aanda.org/articles/aa/pdf/2016/07/aa28037-15.pdf
Yang, G., Brandt, W., Luo, B., Xue, Y., Bauer, F., Sun, M., Kim, S., Schulze, S., Zheng, X., Paolillo, M., Shemmer, O., Liu, T., Schneider, D., Vignali, C., Vito, F., Wang, J. (2016). Long-Term X-ray Variability of Typical Active Galactic Nuclei in the Distant Universe. The Astrophysical Journal. 831(2), 20. IOP. http://iopscience.iop.org/article/10.3847/0004-637X/831/2/145/pdf
Netzer, H., Lani, C., Nordon, R., Trakhtenbrot, B., Lira, P., Shemmer, O. (2016). Star Formation Black Hole Growth and Dusty Tori in the Most Luminous AGNs at z=2-3.5. The Astrophysical Journal. 819(2), 23. IOP. http://iopscience.iop.org/article/10.3847/0004-637X/819/2/123/pdf
Vito, F., Gilli, R., Vignali, C., Brandt, W., Comastri, A., Yang, G., Lehmer, B., Luo, B., Basu-Zych, A., Bauer, F., Cappelluti, N., Koekemoer, A., Mainieri, V., Paolillo, M., Ranalli, P., Shemmer, O., Trump, J., Wang, J., Xue, Y. (2016). The deepest X-ray view of high-redshift galaxies: constraints on low-rate black hole accretion. Monthly Notices of the Royal Astronomical Society. 463(1), 348-374. OUP. https://academic.oup.com/mnras/article-abstract/463/1/348/2589868?redirectedFrom=PDF
Lehmer, B., Basu-Zych, A., Mineo, S., Brandt, W., Eufrasio, R., Fragos, T., Hornschemeier, A., Luo, B., Xue, Y., Bauer, F., Gilfanov, M., Ranalli, P., Schneider, D., Shemmer, O., Tozzi, P., Trump, J., Vignali, C., Wang, J., Yukita, M., Zezas, A. (2016). The Evolution of Normal Galaxy X-Ray Emission through Cosmic History: Constraints from the 6 MS Chandra Deep Field-South. The Astrophysical Journal. 825(1), 7. IOP. http://iopscience.iop.org/article/10.3847/0004-637X/825/1/7/pdf
Plotkin, R., Shemmer, O., Trakhtenbrot, B., Anderson, S., Brandt, W., Fan, X., Gallo, E., Luo, B., Richards, G., Schneider, D., Strauss, M., Wu, J. (2015). Detection of Rest-frame Optical Lines from X-shooter Spectroscopy of Weak Emission Line Quasars. The Astrophysical Journal. 805(2), 123. IOP. http://iopscience.iop.org/0004-637X/805/2/123/pdf/0004-637X_805_2_123.pdf
Carniani, S., Marconi, A., Maiolino, R., Balmaverde, B., Brusa, M., Cano-Diaz, M., Cicone, C., Comastri, A., Cresci, G., Fiore, F., Feruglio, C., La Franca, F., Mainieri, V., Mannucci, F., Nagao, T., Netzer, H., Piconcelli, E., Risaliti, G., Schneider, R., Shemmer, O. (2015). Ionised outflows in z ~ 2.4 quasar host galaxies. Astronomy & Astrophysics. 580(A102), 13. EDP Sciences. http://http://www.aanda.org/articles/aa/pdf/2015/08/aa26557-15.pdf
Shemmer, O., Lieber, S. (2015). Weak Emission-line Quasars in the Context of a Modified Baldwin Effect. The Astrophysical Journal. 805(2), 124. IOP. http://iopscience.iop.org/0004-637X/805/2/124/pdf/0004-637X_805_2_124.pdf
Luo, B., Brandt, W., Hall, P., Wu, J., Anderson, S., Garmire, G., Gibson, R., Plotkin, R., Richards, G., Schneider, D., Shemmer, O., Shen, Y. (2015). X-ray Insights into the Nature of PHL 1811 Analogs and Weak Emission-line Quasars: Unification with a Geometrically Thick Accretion Disk?. The Astrophysical Journal. 805(2), 122. IOP. http://iopscience.iop.org/0004-637X/805/2/122/pdf/0004-637X_805_2_122.pdf
Shemmer, O., Brandt, W., Paolillo, M., Kaspi, S., Vignali, C., Stein, M., Lira, P., Schneider, D., Gibson, R. (2014). Exploratory X-ray Monitoring of Luminous Radio-Quiet Quasars at High Redshift: Initial Results. The Astrophysical Journal. 783(2), 116. IOP. http://iopscience.iop.org/article/10.1088/0004-637X/783/2/116/pdf
Young, J., Eracleous, M., Shemmer, O., Netzer, H., Gronwall, C., Lutz, D., Ciardullo, R., Sturm, E. (2014). Locating star-forming regions in quasar host galaxies. Monthly Notices of the Royal Astronomical Society. 438(1), 217-239. OUP. https://watermark.silverchair.com/stt2145.pdf?token=AQECAHi208BE49Ooan9kkhW_Ercy7Dm3ZL_9Cf3qfKAc485ysgAAAaswggGnBgkqhkiG9w0BBwagggGYMIIBlAIBADCCAY0GCSqGSIb3DQEHATAeBglghkgBZQMEAS4wEQQM9RFqHashN4sSFWMgAgEQgIIBXqsnE-_pIPt-SAQ5SeU6eJeZ7xSluK1zk_c4Gw_1vKuskDDZ2vm8nS4al-R145LtXkae7Quj1iGcFetBbek4BQJKejuqUJRBHwoEACQy04J4e92oIkXxIFcg53hr3zStQ4y6K6tP1VW-qD4eRJu53xsvj3EWp3OIowgozWEDCI5zljIVMbWiP1ooY5Z_H4a6-sP_asPHwafyGFZrNe-TGoPWeRcnuhh-pJEFHDLY8H7d9dQPHUAEbpbZYkslUbS-_i_k11Asu3emwberx5tvpV3KU05pVCdH2GGSoQ7Fk3w94wMgP9dc5vfR2TiOOX-FpcFYSPA8cexuMY1Ftqd26BTLLpTRPhZ_QfFe_l4knBbSw-DGM0of2BBVd-8t5NPJAEghNhiDtv51GjJ6QgIr4Z_PL3qQ0XTOGanABE36VvMB0IsLxXPpUr474OJE8ULEVFgvbfH-UUgDHommijBt
Chelouche, D., Shemmer, O., Cotlier, G., Barth, A., Rafter, S. (2014). On the Performance of Quasar Reverberation Mapping in the Era of Time-domain Photometric Surveys. The Astrophysical Journal. 785(2), 140. IOP. http://iopscience.iop.org/article/10.1088/0004-637X/785/2/140/pdf
Netzer, H., Mor, R., Trakhtenbrot, B., Shemmer, O., Lira, P. (2014). Star Formation and Black Hole Growth at z~4.8. The Astrophysical Journal. 791(1), 34. IOP. http://iopscience.iop.org/article/10.1088/0004-637X/791/1/34/pdf
Brightman, M., Silverman, J., Mainieri, V., Ueda, Y., Schramm, M., Matsuoka, K., Nagao, T., Steinhardt, C., Kartaltepe, J., Sanders, D., Treister, E., Shemmer, O., Brandt, W., Brusa, M., Comastri, A., Ho, L., Lanzuisi, G., Lusso, E., Nandra, K., Salvato, M., Zamorani, G., Akiyama, M., Alexander, D., Bongiorno, A., Capak, P., Civano, F., Del Moro, A., Doi, A., Elvis, M., Hasinger, G., Laird, E., Masters, D., Mignoli, M., Ohta, K., Schawinski, K., Taniguchi, Y. (2013). A Statistical Relation Between the X-ray Spectral Index and Eddington Ratio of Active Galactic Nuclei in Deep Surveys. Monthly Notices of the Royal Astronomical Society. 433(3), 2485-2496. OUP. https://watermark.silverchair.com/stt920.pdf?token=AQECAHi208BE49Ooan9kkhW_Ercy7Dm3ZL_9Cf3qfKAc485ysgAAAagwggGkBgkqhkiG9w0BBwagggGVMIIBkQIBADCCAYoGCSqGSIb3DQEHATAeBglghkgBZQMEAS4wEQQMMxhh7ZP8lZJsH66YAgEQgIIBW_3x0LMfErayX3tyi3A-U_jwAyPLl8D8I4C1jFGxO1LI8455NO0AO9eQv130d8I3VYo_IJPeDlnaiv-6yT5kI7gm-_fAL9xnXD0FHl3nG-XFusY6HgS4IiX-l9lhKkbIxMa6IztjivnIf3BXmELOGMLE9oALMi-ije7R_j-juyo3EWy3fBtVM1DSNluaXL5qpsVp11Im2vMUnd7kwU7odtdms2royD0x71QMCEKNHiimwdhugEVAJNovadMu1CBWeJAhoqKOjiZ_ffe_4NmHu9JIgeCf0iC1DJ14IsXSBZg1atWwpjM0z_g1eP3P5m0_P27fDAYbUq_V1ezh4pDbK6wRQd8a55gySCx9NKKBZAqyQuHYw6nv8MyvZpHY_g4Xk7oC4C0H271tMUHkxNIUyYNLwyvHUI56d3dldGj0qGVyjCK0fTLaPKzZln9HPVc-m-7UkmpitCywKiPL
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Cano-Díaz, M., Maiolino, R., Marconi, A., Netzer, H., Shemmer, O., Cresci, G. (2012). Observational Evidence of Quasar Feedback Quenching Star Formation at High Redshift. Astronomy & Astrophysics. 537, 7. EDP Sciences. https://www.aanda.org/articles/aa/pdf/2012/01/aa18358-11.pdf
Lehmer, B., Xue, Y., Brandt, W., Alexander, D., Bauer, F., Brusa, M., Comastri, A., Gilli, R., Hornschemeier, A., Luo, B., Paolillo, M., Ptak, A., Shemmer, O., Schneider, D., Tozzi, P., Vignali, C. (2012). The 4 Ms Chandra Deep Field-South Number Counts Apportioned by Source Class: Pervasive Active Galactic Nuclei and the Ascent of Normal Galaxies. The Astrophysical Journal. 752(1), 23. IOP. http://iopscience.iop.org/article/10.1088/0004-637X/752/1/46/pdf
Plotkin, R., Anderson, S., Brandt, W., Markoff, S., Shemmer, O., Wu, J. (2012). The Lack of Torus Emission from BL Lacertae Objects: An Infrared View of Unification with WISE. The Astrophysical Journal. 745(2), 6. IOP. http://iopscience.iop.org/article/10.1088/2041-8205/745/2/L27/pdf
Young, M., Brandt, W., Xue, Y., Paolillo, M., Alexander, D., Bauer, F., Lehmer, B., Luo, B., Shemmer, O., Schneider, D., Vignali, C. (2012). Variability-Selected Low-Luminosity Active Galactic Nuclei in the 4 Ms Chandra Deep Field-South. The Astrophysical Journal. 748(2), 17. IOP. http://iopscience.iop.org/article/10.1088/0004-637X/748/2/124/pdf
Wu, J., Brandt, W., Anderson, S., Diamond-Stanic, A., Hall, P., Plotkin, R., Schneider, D., Shemmer, O. (2012). X-Ray and Multiwavelength Insights into the Nature of Weak Emission-line Quasars at Low Redshift. The Astrophysical Journal. 747(1), 21. IOP. http://iopscience.iop.org/article/10.1088/0004-637X/747/1/10/pdf
Wu, J., Brandt, W., Hall, P., Gibson, R., Richards, G., Schneider, D., Shemmer, O., Just, D., Schmidt, S. (2011). A Population of X-Ray Weak Quasars: PHL 1811 Analogs at High Redshift. The Astrophysical Journal. 736(1), 21. IOP. http://iopscience.iop.org/article/10.1088/0004-637X/736/1/28/pdf
Trakhtenbrot, B., Netzer, H., Lira, P., Shemmer, O. (2011). Black Hole Mass and Growth Rate at z ~= 4.8: A Short Episode of Fast Growth Followed by Short Duty Cycle Activity. The Astrophysical Journal. 730(1), 15. IOP. http://iopscience.iop.org/article/10.1088/0004-637X/730/1/7/pdf
Xue, Y., Luo, B., Brandt, W., Bauer, F., Lehmer, B., Broos, P., Schneider, D., Alexander, D., Brusa, M., Comastri, A., Fabian, A., Gilli, R., Hornschemeier, A., Koekemoer, A., Liu, T., Mainieri, V., Paolillo, M., Rafferty, D., Rosati, P., Shemmer, O., Silverman, J., Smail, I., Tozzi, P., Vignali, C. (2011). The Chandra Deep Field-South Survey: 4 Ms Source Catalogs. The Astrophysical Journal Supplement. 195(1), 31. IOP. http://iopscience.iop.org/article/10.1088/0067-0049/195/1/10/pdf
Lane, R., Shemmer, O., Diamond-Stanic, A., Fan, X., Anderson, S., Brandt, W., Plotkin, R., Richards, G., Schneider, D., Strauss, M. (2011). The Ultraviolet-to-mid-infrared Spectral Energy Distribution of Weak Emission Line Quasars. The Astrophysical Journal. 743(2), 10. IOP. http://iopscience.iop.org/article/10.1088/0004-637X/743/2/163/pdf
Saez, C., Brandt, W., Shemmer, O., Chomiuk, L., Lopez, L., Marshall, H., Miller, B., Vignali, C. (2011). The X-Ray Properties of Typical High-redshift Radio-loud Quasars. The Astrophysical Journal. 738(1), 12. IOP. http://iopscience.iop.org/article/10.1088/0004-637X/738/1/53/pdf
Alexander, D., Bauer, F., Brandt, W., Daddi, E., Hickox, R., Lehmer, B., Luo, B., Xue, Y., Young, M., Comastri, A., Del Moro, A., Fabian, A., Gilli, R., Goulding, A., Mainieri, V., Mullaney, J., Paolillo, M., Rafferty, D., Schneider, D., Shemmer, O., Vignali, C. (2011). X-Ray Spectral Constraints for z ≈ 2 Massive Galaxies: The Identification of Reflection-dominated Active Galactic Nuclei. The Astrophysical Journal. 738(1), 13. IOP. http://iopscience.iop.org/article/10.1088/0004-637X/738/1/44/pdf
Plotkin, R., Anderson, S., Brandt, W., Diamond-Stanic, A., Fan, X., MacLeod, C., Schneider, D., Shemmer, O. (2010). Multiwavelength Observations of Radio-Quiet Quasars with Weak Emission Lines. The Astrophysical Journal. 721(1), 562-575. IOP. http://iopscience.iop.org/article/10.1088/0004-637X/721/1/562/pdf
Plotkin, R., Anderson, S., Brandt, W., Diamond-Stanic, A., Fan, X., Hall, P., Kimball, A., Richmond, M., Schneider, D., Shemmer, O., Voges, W., York, D., Bahcall, N., Snedden, S., Bizyaev, D., Brewington, H., Malanushenko, V., Malanushenko, E., Oravetz, D., Pan, K., Simmons, A. (2010). Optically Selected BL Lacertae Candidates from the Sloan Digital Sky Survey Data Release Seven. The Astronomical Journal. 139(2), 390-414. IOP. http://iopscience.iop.org/article/10.1088/0004-6256/139/2/390/pdf
Wu, J., Brandt, W., Comins, M., Gibson, R., Shemmer, O., Garmire, G., Schneider, D. (2010). The X-ray Properties of the Optically Brightest Mini-BAL Quasars from the Sloan Digital Sky Survey. The Astrophysical Journal. 724(1), 762-778. IOP. http://iopscience.iop.org/article/10.1088/0004-637X/724/1/762/pdf
Shemmer, O., Trakhtenbrot, B., Anderson, S., Brandt, W., Diamond-Stanic, A., Fan, X., Lira, P., Netzer, H., Plotkin, R., Richards, G., Schneider, D., Strauss, M. (2010). Weak Line Quasars at High Redshift: Extremely High Accretion Rates or Anemic Broad-Line Regions?. The Astrophysical Journal. 722(2), L152-L156. IOP. http://iopscience.iop.org/article/10.1088/2041-8205/722/2/L152/pdf
Miller, B., Brandt, W., Gibson, R., Garmire, G., Shemmer, O. (2009). A Chandra Survey of the X-ray Properties of Broad Absorption Line Radio-Loud Quasars. The Astrophysical Journal. 702(2), 911-928. IOP. http://iopscience.iop.org/article/10.1088/0004-637X/702/2/911/pdf
Diamond-Stanic, A., Fan, X., Brandt, W., Shemmer, O., Strauss, M., Anderson, S., Carilli, C., Gibson, R., Jiang, L., Kim, S., Richards, G., Schmidt, G., Schneider, D., Shen, Y., Smith, P., Vestergaard, M., Young, J. (2009). High Redshift SDSS Quasars with Weak Emission Lines. The Astrophysical Journal. 699(1), 782-799. IOP. http://iopscience.iop.org/article/10.1088/0004-637X/699/1/782/pdf
Shemmer, O., Brandt, W., Anderson, S., Diamond-Stanic, A., Fan, X., Richards, G., Schneider, D., Strauss, M. (2009). X-ray Insights into the Na­ture of Weak Emission-Line Quasars at High Redshift. The Astrophysical Journal. 696(1), 580-590. IOP. http://iopscience.iop.org/article/10.1088/0004-637X/696/1/580/pdf
Pastorello, A., Mattila, S., Zampieri, L., Della Valle, M., Smartt, S., Valenti, S., Agnoletto, I., Benetti, S., Benn, C., Branch, D., Cappellaro, E., Dennefeld, M., Eldridge, J., Gal-Yam, A., Harutyunyan, A., Hunter, I., Kjeldsen, H., Lipkin, Y., Mazzali, P., Milne, P., Navasardyan, H., Ofek, E., Pian, E., Shemmer, O., Spiro, S., Stathakis, R., Taubenberger, S., Turatto, M., Yamaoka, H. (2008). Massive stars exploding in a He-rich circumstellar medium -I. Type Ibn (SN 2006jc-like) events. Monthly Notices of the Royal Astronomical Society. 389(1), 113-130. OUP. https://watermark.silverchair.com/mnras0389-0113.pdf?token=AQECAHi208BE49Ooan9kkhW_Ercy7Dm3ZL_9Cf3qfKAc485ysgAAAbowggG2BgkqhkiG9w0BBwagggGnMIIBowIBADCCAZwGCSqGSIb3DQEHATAeBglghkgBZQMEAS4wEQQMChRQVRp8BrabTBygAgEQgIIBbUOsbnXkDrOnrEb8NlgwEsKHdCai3DnnN8GR4Lpd3b07eg7Pd8WUDwJnbDHd59WSOGLDT8qywBKYVPlCsLf1BXGqDuFKFLjpasg3F5wzcc9eEB_zpZ7K-UPvRvL-0DDKRlN9XEZnl44Mb4cKJCEdNoK_gqergJqpvwe2cAS0EepDqN6BOqRkNNhJmZbFTC3ZvXaHQSyDsqW9540N0hWZGxlE681c-d7LohmFjwqojLQ0VI3ciq2-ErFZR0Tvk1dluhTdMgipYxx_wdaoWfWDqaG8VdTA-GW-QFVKxa8OllW6Ua-DNy4JsulcZ3uo8Du54rppCmlGBjFI1gfD7pNFriz46CzyqfdDgNY2c-uuEJaSBxydyO1gb0DSM6dOTynyaNgMXjvyc-DXv4qTcPGnPg_Ks7NtIuf1V6tac1snkmWUyrakoFwFWtxI8vUzR0rSbm4PtVn2n0hd_xuxQ_PJbIToDFKrcxKCKBpLJvZC
Lutz, D., Sturm, E., Tacconi, L., Valiante, E., Schweitzer, M., Netzer, H., Maiolino, R., Andreani, P., Shemmer, O., Veilleux, S., S. (2008). Star Formation in the Hosts of High-z QSOs: Evidence from Spitzer PAH Detections. The Astrophysical Journal. 684(2), 853-861. IOP. http://iopscience.iop.org/article/10.1086/590367/pdf
Luo, B., Bauer, F., Brandt, W., Alexander, D., Lehmer, B., Schneider, D., Brusa, M., Comastri, A., Fabian, A., Finoguenov, A., Gilli, R., Hasinger, G., Hornschemeier, A., Koekemoer, A., Mainieri, V., Paolillo, M., Rosati, P., Shemmer, O., Silverman, J., Smail, i., Steffen, A., Vignali, C. (2008). The Chandra Deep Field-South Survey: 2 Ms Source Catalogs. The Astrophysical Journal Supplement. 179(1), 19-36. IOP. http://iopscience.iop.org/article/10.1086/591248/pdf
Shemmer, O., Brandt, W., Netzer, H., Maiolino, R., Kaspi, S. (2008). The Hard X-ray Spectrum as a Probe for Black-Hole Growth in Radio-Quiet Active Galactic Nuclei. The Astrophysical Journal. 682(1), 81-93. IOP. http://iopscience.iop.org/article/10.1086/588776/pdf
Netzer, H., Lira, P., Trakhtenbrot, B., Shemmer, O., Cury, I. (2007). Black-Hole Mass and Growth Rate at High Redshift. The Astrophysical Journal. 671(2), 1256-1263. UCP. http://iopscience.iop.org/article/10.1086/523035/pdf
Maiolino, R., Shemmer, O., Imanishi, M., Netzer, H., Oliva, E., Lutz, D., Sturm, E. (2007). Dust covering factor, silicate emission, and star formation in luminous QSOs. Astronomy & Astrophysics. 468(3), 979-992. EDP. https://www.aanda.org/articles/aa/pdf/2007/24/aa7252-07.pdf
Ofek, E., Cenko, S., Gal-Yam, A., Fox, D., Nakar, E., Rau, A., Frail, D., Kulkarni, S., Price, P., Schmidt, B., Soderberg, A., Peterson, B., Berger, E., Sharon, K., Shemmer, O., Penprase, B., Chevalier, R., Brown, P., Burrows, D., Gehrels, N., Harrison, F., Holland, S., Mangano, V., McCarthy, P., Moon, D., Nousek, J., Persson, S., Piran, T., Sari, R. (2007). GRB 060505: A Possible Short-Duration Gamma-Ray Burst in a Star-forming Region at a Redshift of 0.09. The Astrophysical Journal. 662(2), 1129-1135. UCP. http://iopscience.iop.org/article/10.1086/518082/pdf
Lutz, D., Sturm, E., Tacconi, L., Valiante, E., Schweitzer, M., Netzer, H., Maiolino, R., Andreani, P., Shemmer, O., Veilleux, S. (2007). PAH Emission and Star Formation in the Host of the z ∼ 2.56 Cloverleaf QSO. The Astrophysical Journal. 661(1), L25-L28. UCO. http://iopscience.iop.org/article/10.1086/518537/pdf
Kaspi, S., Brandt, W., Maoz, D., Netzer, H., Schneider, D., Shemmer, O. (2007). Reverberation Mapping of High-Luminosity Quasars: First Results. The Astrophysical Journal. 659(2), 997-1007. UCP. http://iopscience.iop.org/article/10.1086/512094/pdf
Just, D., Brandt, W., Shemmer, O., Steffen, A., Schneider, D., Chartas, G., Garmire, G. (2007). The X-Ray Properties of the Most Luminous Quasars from the Sloan Digital Sky Survey. The Astrophysical Journal. 665(2), 1004-1022. UCP. http://iopscience.iop.org/article/10.1086/519990/pdf
Shemmer, O., Brandt, W., Schneider, D., Fan, X., Strauss, M., Diamond-Stanic, A., Richards, G., Anderson, S., Gunn, J., Brinkmann, J. (2006). Chandra Observations of the Highest Redshift Quasars from the Sloan Digital Sky Survey. The Astrophysical Journal. 644(1), 86-99. UCP. http://iopscience.iop.org/article/10.1086/503543/pdf
Shemmer, O., Brandt, W., Netzer, H., Maiolino, R., Kaspi, S. (2006). The Hard X-ray Spectral Slope as an Accretion-Rate Indicator in Radio-Quiet Active Galactic Nuclei. The Astrophysical Journal. 646(1), L29-L32. UCP. http://iopscience.iop.org/article/10.1086/506911/pdf
Shemmer, O., Brandt, W., Vignali, C., Schneider, D., Fan, X., Richards, G., Strauss, M. (2005). The X-Ray Spectral Properties and Variability of Luminous High-Redshift Active Galactic Nuclei. The Astrophysical Journal. 630(2), 729-739. UCP. http://iopscience.iop.org/article/10.1086/432050/pdf
Shemmer, O., Brandt, W., Gallagher, S., Vignali, C., Boller, T., Chartas, G., Comastri, A. (2005). XMM-Newton Spectroscopy of the Highly Polarized and Luminous Broad Absorption Line Quasar CSO 755. The Astronomical Journal. 130(6), 2522-2528. UCP. http://iopscience.iop.org/article/10.1086/497830/pdf
Shemmer, O., Netzer, H., Maiolino, R., Oliva, E., Croom, S., Corbett, E., di Fabrizio, L. (2004). Near Infrared Spectroscopy of High Redshift Active Galactic Nuclei. I. A Metallicity-Accretion Rate Relationship. The Astrophysical Journal. 614(2), 547-557. UCP. http://iopscience.iop.org/article/10.1086/423607/pdf
Netzer, H., Shemmer, O., Maiolino, R., Oliva, E., Croom, S., Corbett, E., di Fabrizio, L. (2004). Near Infrared Spectroscopy of High Redshift Active Galactic Nuclei. II. Disappearing Narrow Line Regions and the Role of Accretion. The Astrophysical Journal. 614(2), 558-567. UCP. http://iopscience.iop.org/article/10.1086/423608/pdf
Romano, P., Mathur, S., Turner, T., Kraemer, S., Crenshaw, M., Peterson, B., Pogge, R., Brandt, W., George, I., Horne, K., Kriss, G., Netzer, H., Shemmer, O., Wamsteker, W. (2004). The Spectral Energy Distribution and Emission-Line Properties of the Narrow-Line Seyfert 1 Galaxy Arakelian 564. The Astrophysical Journal. 602(2), 635-647. UCP. http://iopscience.iop.org/article/10.1086/381235/pdf
Shemmer, O., Uttley, P., Netzer, H., McHardy, I. (2003). Complex X-ray-Optical Correlations in the Narrow-Line Seyfert 1 Galaxy NGC 4051. Monthly Notices of the Royal Astronomical Society. 343(4), 1341-1347. OUP. https://watermark.silverchair.com/343-4-1341.pdf?token=AQECAHi208BE49Ooan9kkhW_Ercy7Dm3ZL_9Cf3qfKAc485ysgAAAbgwggG0BgkqhkiG9w0BBwagggGlMIIBoQIBADCCAZoGCSqGSIb3DQEHATAeBglghkgBZQMEAS4wEQQMiCYS_U_wzvg4wMoeAgEQgIIBa10GXOQS1qDjbQsvWBjye5WuI61V_c0npXEOZrsoJovdYBg7j_isQHtWMSgGRiiqMjkMMvhRyKeMy9R0LTXV9HHP98tDEg_elFMCT7uLrzUlrtMF-iBUX0nt4-Shi7zANp1pzzYajd5j_RwrOVvbHnfHpRaLsoPtk3sLdubQItOpZlpozZu7jOtlPntZNkkAH-ZKXSanhvbZmbqNo6oM8ILpa2tiT_s-seaNadhSwN9E1Dv5EB523I11QXypcwZMMCzSnvR3TsEO-FEBm3MV3J5o85vhfxRqGO3KssbwuVhz9qkKABh3o2zU6rkm2YoNfEkbNhk4xh5rcQKn6XZt9Zb4XvyBAgrHgJPrzdqsEVHtnaXkmVkWHQCwxctpBH_K1DuVUj6QMaXaamradnPQYaTexw0FvRra-RPFxnFYf3iqWz3MeQdHvOB1oniduqrGAchw5GxhcClh0rBb27joQcwhrB2xx8D5Wg5R_A
Shemmer, O., Netzer, H. (2002). Is There a Metallicity-Luminosity Relationship in Active Galactic Nuclei? The Case of Narrow-Line Seyfert 1 Galaxies. The Astrophysical Journal. 567(1), L19-L22. UCP. http://iopscience.iop.org/article/10.1086/339797/pdf
Crenshaw, M., Kraemer, S., Turner, T., Collier, S., Peterson, B., Brandt, W., Clavel, J., George, I., Horne, K., Kriss, G., Mathur, S., Netzer, H., Pogge, R., Pounds, K., Romano, P., Shemmer, O., Wamsteker, W. (2002). Reddening, Emission-Line, and Intrinsic Absorption Properties in the Narrow-Line Seyfert 1 Galaxy Arakelian 564. The Astrophysical Journal. 566(1), 187-194. UCP. http://iopscience.iop.org/article/10.1086/338058/pdf
Gal-Yam, A., Ofek, E., Shemmer, O. (2002). Supernova 2002ap: the first month. Monthly Notices of the Royal Astronomical Society. 322(4), L73-L77. OUP. https://watermark.silverchair.com/332-4-L73.pdf?token=AQECAHi208BE49Ooan9kkhW_Ercy7Dm3ZL_9Cf3qfKAc485ysgAAAbYwggGyBgkqhkiG9w0BBwagggGjMIIBnwIBADCCAZgGCSqGSIb3DQEHATAeBglghkgBZQMEAS4wEQQM6PXriRfs1_DWDZInAgEQgIIBaenYyB4xTUMXxHcT6sFfuUzhu-2tNwkkr6WUo40pQpW8zbUTT3MrdstyoQaZ1xoqVJs3nGIW5p62wld9wZWnsZdb7j4pnN7ldxTLCnSUJf4sysd_Uyrz5XwOk2BrKRBASaSiu1lzpFH2tFsE-AHqPb-xlmbMPXM94OMDrAfxA8Txq81V4vsI8FQvX7oAgmQTutrJjv1T5sbJZAXNeoMz7v0m40D5aByk1wxt5rFXjJPAtO26VcNnecL4je3mW_24BMx6BRplzFeOUR0roWBpI2S-2O3SHSBlQpK_saCceiMowJkvkDxbfqip9tu65LPLTXwz9ZA6B5gQM-_sj6YjuKO9DGZBcEc7AHP1fYyHV_LKpCUbMpYVnEuyO1y3qUvZ_bcBIFxIyVKU_FIFJUE03w6e6Ai9rG1dSFzAcFJJ-kjSMGSMjptG7G6R0iiroEL3gmKvnFbVE5Z4j3vvCqdKF_7-swrM_WwuKUo
Daniels, J., Brosch, N., Almoznino, E., Shemmer, O., Bowyer, S., Lampton, M. (2001). FAUST observations of ultraviolet sources in the directions of NGC 4038-39 and 6752. Monthly Notices of the Royal Astronomical Society. 324(3), 580-598. OUP. https://watermark.silverchair.com/324-3-580.pdf?token=AQECAHi208BE49Ooan9kkhW_Ercy7Dm3ZL_9Cf3qfKAc485ysgAAAbYwggGyBgkqhkiG9w0BBwagggGjMIIBnwIBADCCAZgGCSqGSIb3DQEHATAeBglghkgBZQMEAS4wEQQMDw7yQQF-b7KpQScbAgEQgIIBacO8ybtXbBtTySKw1JIf_CbeiQRt4AZzw-GRwJO5m2LVxNySgihO5vh8ZaZy_PWd3YemJDfAcENcyEL4qrdPgeig5soCZdx8M7-kmCDuhWhFxnhZyen4jyVoHg0BKzIlbNQG8wAUQAwccx20m0SijxANqFPFvwVTWAa_s9mtAVpz1lbDG492BPonYk4TlEh97wilJjhEeJSitJ_Bi8l76fmdb_gq8XbO_nQdu7qrqPWrXQvNqgJlayVluBBbEeNDof-dFb4HAtTBwTtPYNu8b5EIUI3uvYL7bc_zNsG5_MuqJHu0AiUZVEFU1nJZp03xv74_tr_i5bdbzEBxUOU7qc81vh52VvnSe-JuUbZRDn4VhyTVXOJAH_cln0YS5HDdDeA5N7ygGqMYm6SQc26dAduV9_a6OZE2lC4OsXcLOBNMD2Q1HTMfZjX_EqtmG5L2jElUBGIEC5nA-8tyGycow34I4L1m1KXlPCg
Collier, S., Crenshaw, M., Peterson, B., Brandt, W., Clavel, J., Edelson, R., George, I., Horne, K., Kriss, G., Mathur, S., Netzer, H., O'Brien, P., Pogge, R., Pounds, K., Romano, P., Shemmer, O., Turner, T., Wamsteker, W. (2001). Multiwavelength Monitoring of the Narrow-Line Seyfert 1 Galaxy Arakelian 564. II. Ultraviolet Continuum and Emission-Line Variability. The Astrophysical Journal. 561(1), 146-161. UCP. http://iopscience.iop.org/article/10.1086/323234/pdf
Shemmer, O., Romano, P., Bertram, R., Brinkmann, W., Collier, S., Crowley, K., Detsis, E., Filippenko, A., Gaskell, M., George, T., Gliozzi, M., Hiller, M., Jewell, T., Kaspi, S., Klimek, E., Lannon, M., Li, W., Martini, P., Mathur, S., Negoro, H., Netzer, H., Papadakis, I., Papamastorakis, I., Peterson, B., Peterson, B., Pogge, R., Pronik, V., Rumstay, K., Sergeev, S., Sergeeva, E., Stirpe, G., Taylor, C., Treffers, R., Turner, T., Uttley, P., Vestergaard, M., von Braun, K., Wagner, R., Zheng, Z. (2001). Multiwavelength Monitoring of the Narrow-Line Seyfert 1 Galaxy Arakelian 564. III. Optical Observations and the Optical-UV-X-Ray Connec­tion. The Astrophysical Journal. 561(1), 162-170. UCP. http://iopscience.iop.org/article/10.1086/323236/pdf
Lipkin, Y., Leibowitz, E., Retter, A., Shemmer, O. (2001). Nova Sagittarii 1998 (V4633 Sgr): a permanent superhump system or an asynchronous polar?. Monthly Notices of the Royal Astronomical Society. 328(4), 1169-1180. OUP. https://watermark.silverchair.com/328-4-1169.pdf?token=AQECAHi208BE49Ooan9kkhW_Ercy7Dm3ZL_9Cf3qfKAc485ysgAAAbgwggG0BgkqhkiG9w0BBwagggGlMIIBoQIBADCCAZoGCSqGSIb3DQEHATAeBglghkgBZQMEAS4wEQQMux-56pCKQiFcU2lrAgEQgIIBa-xN1smyFQVxoyFEA8yUSakgXBklhJw8iEvSYBhg47_w-S34iOo_Cdp1TayyuY3xeXTXuDgt4ezVvYPSXNSOYH_Szde4yrhNB3COyUTWsm-ar9i6qTBahqgQRJMsNcUzok2LJxXRrXqLr_emcyXaECGTDXLnsq5pCLUTlHxFhVRAB05_kyuu874JprdU9cgwEIv4fttEYYN_yMztkoQPuAOSbKBWPQWslqwhDwmfVR4QZ28HjywqPyIZzO1D8x8VuX3cFU_sXkYGM1eVAuEZoxQgwJjQZ8KG_w8HZ0gJlOWEi5kyvW-SPI9OSOs3dDCP-xwttsD7i_gVvGxAPxRZ2uE0WxrEBo7xKldPwcJEwGOqsc89L67GiS9pjdC7yaEtzxEtIfMvbqB1oreSHnbYnhW87PygGf9NRPfdUfKpOgfQoPEd0yQmPA6v6t7FpCky6DbrjV5ZKIqstBS5I3tCyI6pxBAHyL8mFaOhuw
Alcock, C., et al., including,, Shemmer, O. (2000). Binary Microlensing Events from the MACHO Project. The Astrophysical Journal. 541(1), 270-297. UCP. http://iopscience.iop.org/article/10.1086/309393/pdf
Shemmer, O., Leibowitz, E., Szkody, P. (2000). Periodic microvariation of B416, a new luminous blue variable in M33. Monthly Notices of the Royal Astronomical Society. 311(4), 698-706. OUP. https://watermark.silverchair.com/311-4-698.pdf?token=AQECAHi208BE49Ooan9kkhW_Ercy7Dm3ZL_9Cf3qfKAc485ysgAAAbYwggGyBgkqhkiG9w0BBwagggGjMIIBnwIBADCCAZgGCSqGSIb3DQEHATAeBglghkgBZQMEAS4wEQQMcz-AOMLPt_ugeQ8tAgEQgIIBaQDxMVvTi1GwaZqsTrsj7TeLDJ5rnX3Ihe9I6zPsoeWl2yzqtM3CsJz82zxy66sfZlvFC3JJMvd9Kq4_dHIwvWDZyCti9AKmxq2QH16TiRcVNZOFxQCgQNish5H4KWeUE0zIz9dM3yt9khqY8kQbOpjefWxvDDhMqpB1L53B3R3inDSD6TQagrWspEGcH6BPfSmGdfIzYBQichsKnH3hxxuLuGpZAjBwL7Kq-0WVc5OdyVi1O4tspn4UdBypQ1UzVslgfjUPd9ZWTWrloCBtw-coC_XE6i2L5f5NAUhZcuQ6rDWROrzQZ6GWEzfngOixYPZZnznPZGIwvuUQrcccY8IK1OzvhxtuHN3Fh-efTYP1lRGFh1FyLZ8s2dRUshUI0yOG6u10GHaJnBkrKPyerE2z6YyLddqSC3a6E4usitzPnGHl2fZoxcc_iV7PaJtbExyiTeyDUkgJUCpiQq3QuBsVgAdGRi3CyKo
Bennett, D., Rhie, S., Becker, A., Butler, N., Dann, J., Kaspi, S., Leibowitz, E., Lipkin, Y., Maoz, D., Mendelson, H., Peterson, B., Quinn, J., Shemmer, O., Thomson, S., Turner, S. (1999). Discovery of a Planet Orbiting a Binary Star System from Gravitational Microlensing. Nature. 402(6757), 57-59. AAAS. http://www.nature.com/articles/46990
Shemmer, O., Kaspi, S. (1999). The Discovery of a Nearby M Dwarf. The Observatory. 119, 70-75. http://articles.adsabs.harvard.edu/cgi-bin/nph-iarticle_query?1999Obs...119...70S&data_type=PDF_HIGH&whole_paper=YES&type=PRINTER&filetype=.pdf
Newsletter
Shemmer, O. (2002). SN 2002ap -peak brightness date (SN/GRB?).
Shemmer, O. (2002). Supernova 2002an in NGC 2575.
Shemmer, O. (2002). Supernova 2002ao in UGC 9299.
Shemmer, O. (2002). Supernova 2002ao in UGC 9299.
Shemmer, O. (2002). Supernova 2002ap in M74.
Shemmer, O. (2001). Nova Aquilae 2001.
Shemmer, O. (2001). Nova Aquilae 2001.
Shemmer, O. (2001). Possible Nova in Puppis.
Shemmer, O. (2001). Supernova 2001bg in NGC 2608.
Shemmer, O. (2001). Supernova 2001dk in UGC 913.
Shemmer, O. (2001). Supernova 2001G in IC 677.
Shemmer, O. (2001). Supernova 2001X in NGC 5921.
Shemmer, O. (2000). Orbital Period and Oscillations in V723 Cassiopeiae.
Shemmer, O. (2000). V723 Cassiopeiae.
Shemmer, O. (1998). Periodic Light Variation in B416. A Lumi­nous Blue Star in M33.
Shemmer, O. (1995). On the period of VY Ursae Majoris.
On-line Data Catalog
Liu, T., Tozzi, P., Wang, J., Brandt, W., Vignali, C., Xue, Y., Schneider, D., Comastri, A., Yang, G., Bauer, F., Paolillo, M., Luo, B., Gilli, R., Wang, Q., Giavalisco, M., Ji, Z., Alexander, D., Mainieri, V., Shemmer, O., Koekemoer, A., Risaliti, G. (2017). VizieR Online Data Catalog: 16yrs of AGNs X-ray spectral analyses from 7Ms CDF-S (Liu+, 2017). VizieR On-line Data Catalog: J/ApJS/232/8. Originally published in: 2017ApJS.232.8L. http://cdsarc.u-strasbg.fr/viz-bin/Cat?cat=J%2fApJS%2f232%2f8&target=brief&msg=redirected%20by%20VizieR
Yang, G., Brandt, W., Luo, B., Xue, Y., Bauer, F., Sun, M., Kim, S., Schulze, S., Zheng, X., Paolillo, M., Shemmer, O., Liu, T., Schneider, D., Vignali, C., Vito, F., Wang, J. (2017). VizieR Online Data Catalog: 6Ms Chandra long-term analyses of AGNs (Yang+, 2016). VizieR On-line Data Catalog: J/ApJ/831/145. Originally published in: 2016ApJ.831.145Y. http://vizier.cfa.harvard.edu/viz-bin/VizieR?-source=J/ApJ/831/145
Luo, B., Brandt, W., Xue, Y., Lehmer, B., Alexander, D., Bauer, F., Vito, F., Yang, G., Basu-Zych, A., Comastri, A., Gilli, R., Gu, Q., Hornschemeier, A., Koekemoer, A., Liu, T., Mainieri, V., Paolillo, M., Ranalli, P., Rosati, P., Schneider, D., Shemmer, O., Smail, I., Sun, M., Tozzi, P., Vignali, C., Wang, J. (2017). VizieR Online Data Catalog: Chandra Deep Field-South survey: 7Ms sources (Luo+, 2017). VizieR On-line Data Catalog: J/ApJS/228/2. Originally published in: 2017ApJS.228.2L. http://vizier.cfa.harvard.edu/viz-bin/VizieR?-source=J/ApJS/228/2
Carniani, S., Marconi, A., Maiolino, R., Balmaverde, B., Brusa, M., Cano-Diaz, M., Cicone, C., Comastri, A., Cresci, G., Fiore, F., Feruglio, C., La Franca, F., Mainieri, V., Mannucci, F., Nagao, T., Netzer, H., Piconcelli, E., Risaliti, G., Schneider, R., Shemmer, O. (2016). VizieR Online Data Catalog: 2 QSOs SINFONI K-band datacubes (Carniani+, 2016). VizieR On-line Data Catalog: J/A+A/591/A28. Originally published in: 2016A&A.591A.28C. http://vizier.cfa.harvard.edu/viz-bin/VizieR?-source=J/A+A/591/A28
Lehmer, B., Basu-Zych, A., Mineo, S., Brandt, W., Eufrasio, R., Fragos, T., Hornschemeier, A., Luo, B., Xue, Y., Bauer, F., Gilfanov, M., Ranalli, P., Schneider, D., Shemmer, O., Tozzi, P., Trump, J., Vignali, C., Wang, J., Yukita, M., Zezas, A. (2016). VizieR Online Data Catalog: Evolution of ~6Ms CDF-S galaxies (Lehmer+, 2016). VizieR On-line Data Catalog: J/ApJ/825/7. Originally published in: 2016ApJ.825.7L. http://vizier.cfa.harvard.edu/viz-bin/VizieR?-source=J/ApJ/825/7
White Paper
Marshall, P., Anguita, T., Bianco, F., Bellm, E., Brandt, W., Clarkson, W., Connolly, A., Gawiser, E., Ivezic, Z., Jones, L., Lochner, M., Lund, M., Mahabal, A., Nidever, D., Olsen, K., Ridgway, S., Rhodes, J., Shemmer, O., al., e. t. (2017). Science-Driven Optimization of the LSST Observing Strategy. 312. https://arxiv.org/abs/1708.04058
Shemmer, O. (2009). The Growth of Supermassive Black Holes Across Cosmic Time. Astro2010: The Astronomy and Astrophysics Decadal Survey, Science White Papers, no. 220. http://adsabs.harvard.edu/abs/2009astro2010S.220N

Presentations Given

Invited Talk

Shemmer, O. (Author & Presenter), TEXAS Symposium 2024, Ohad Shemmer's Research Group, University of North Texas, University of North Texas, United States of America. (2024 – 2024).

Shemmer, O. (Author & Presenter), LSST@Europe5 Meeting, The LSST AGN Science Collaboration Roadmap, LSST, Porec, Croatia, Croatia. (2023 – 2023).

Shemmer, O. (Author & Presenter), Supermassive Black Hole Studies with the Legacy Survey of Space and Time - 2022: Getting Ready for Rubin Operations, The LSST AGN Science Collaboration Roadmap, LSST, Virtual, United States of America. (2022 – 2022).

Shemmer, O. (Other), Colloquium, Department of Astronomy and Astrophysics, The Pennsylvania State University, Placing High-Redshift Quasars in Perspective: a Gemini Near Infrared Spectroscopic Survey, The Pennsylvania State University, University Park, PA, United States of America. (2022 – 2022).

Shemmer, O. (Author & Presenter), Building Astronomy in Texas 2019, Astronomy at UNT, University of Texas at Dallas, UTD campus, Richardson, TX, United States of America. (2019 – 2019).

Shemmer, O. (Other), Colloquium, Department of Physics, University of Texas, Rio Grande Valley, Multiwavelength Diagnostics of Quasar Accretion Power, University of Texas, Rio Grande Valley, Brownsville, TX, United States of America. (2017 – 2017).

Shemmer, O. (Other), Colloquium, Department of Physics, University of Tulsa, Quasar Science in the Large Synoptic Survey Telescope Era, University of Tulsa, Tulsa, OK, United States of America. (2016 – 2016).

Shemmer, O. (Other), Colloquium, Department of Physics and Astronomy, University of Wyoming, Quasar Science in the Large Synoptic Survey Telescope Era, University of Wyoming, Laramie, WY, United States of America. (2015 – 2015).

Shemmer, O. (Other), Colloquium, Department of Physics, University of Texas at Dallas, Quasar Science in the Large Synoptic Survey Telescope Era, University of Texas at Dallas, Richardson, TX, United States of America. (2015 – 2015).

Shemmer, O. (Other), Physics Colloquium, Department of Physics, Texas A&M University, Commerce, Quasar Science in the Large Synoptic Survey Telescope Era, Texas A&M University, Commerce, Commerce, TX, United States of America. (2015 – 2015).

Shemmer, O. (Other), Colloquium, University of Amsterdam, Amsterdam, The Netherlands, Solving the Mystery of Weak Emission Line Quasars at High Redshift, University of Amsterdam, Amsterdam, The Netherlands, Netherlands. (2013 – 2013).

Shemmer, O. (Other), Colloquium, University of Bologna, Bologna, Italy, Solving the Mystery of Weak Emission Line Quasars at High Redshift, University of Bologna, Bologna, Italy, Italy. (2013 – 2013).

Shemmer, O. (Other), Colloquium, Baylor University, Waco, TX, Solving the Mystery of Weak Emission Line Quasars at High Redshift, Baylor University, Waco, TX, United States of America. (2012 – 2012).

Shemmer, O. (Other), Colloquium, Lowell Observatory, Flagstaff, AZ, Solving the Mystery of Weak Emission Line Quasars at High Redshift, Lowell Observatory, Flagstaff, AZ, United States of America. (2011 – 2011).

Shemmer, O. (Other), Colloquium, University of Texas at Arlington, Arlington, TX, Solving the Mystery of Weak Emission Line Quasars at High Redshift, University of Texas at Arlington, Arlington, TX, United States of America. (2011 – 2011).

Shemmer, O. (Other), Colloquium, Saint Mary’s University, Halifax, NS, Canada, Multiwavelength Insights into the Nature of Weak Emission-Line Quasars at High Redshift, Saint Mary’s University, Halifax, NS, Canada, Canada. (2010 – 2010).

Shemmer, O. (Other), Colloquium, Texas Christian University, Fort Worth, TX, Multiwavelength Insights into the Nature of Weak Emission-Line Quasars at High Redshift, Texas Christian University, Fort Worth, TX, United States of America. (2010 – 2010).

Shemmer, O. (Other), Seminar, Tel Aviv University, Tel Aviv, Israel, Multiwavelength Insights into the Nature of Weak Emission-Line Quasars at High Redshift, Tel Aviv University, Tel Aviv, Israel, Israel. (2010 – 2010).

Shemmer, O. (Other), Seminar, Technion, Haifa, Israel, Multiwavelength Insights into the Nature of Weak Emission-Line Quasars at High Redshift, Technion, Haifa, Israel, Israel. (2009 – 2009).

Shemmer, O. (Other), Colloquium, University of North Texas, Denton, TX, Tracing the History of Black-Hole Growth Across Cosmic Time, University of North Texas, Denton, TX, United States of America. (2008 – 2008).

Shemmer, O. (Other), Seminar, Technion, Haifa, Israel, A Multiwavelength View of Powerful Active Galactic Nuclei at High Redshift, Technion, Haifa, Israel, Israel. (2006 – 2006).

Shemmer, O. (Other), Colloquium, ESO, Garching, Germany, Probing Quasar Metal Enrichment and Energy Production at High Redshift, ESO, Garching, Germany, Germany. (2003 – 2003).

Shemmer, O. (Other), Seminar, Yale University, Newhaven, CT, Probing Quasar Metal Enrichment and Energy Production at High Redshift, Yale University, Newhaven, CT, United States of America. (2003 – 2003).

Oral Presentation

Shemmer, O. (Other), Seminar, Harvard-Smithsonian Center for Astrophysics, Cambridge, MA, Multiwavelength Insights into the Nature of Weak Emission-Line Quasars at High Redshift, Harvard-Smithsonian Center for Astrophysics, Cambridge, MA, United States of America. (2009 – 2009).

Media Contributions

Internet
"Leap Year Is Here, Y'all. Here's What That Means.," Dallas Observer. (February 13, 2024).
"LED lights are erasing our view of the stars — and it's getting worse," CBS News. (September 1, 2023).

Contracts, Grants and Sponsored Research

Fellowship
Shemmer, O. (Other), "The Wiederman Paul award for academic excellence," Sponsored by Tel Aviv University, Private, $1000 Funded. (2004 – 2004).
Grant - Research
Shemmer, O. (Principal), "Chandra Cycle 24, program #24700311," Sponsored by Smithsonian Astrophysical Observatory, Federal, $192810 Funded. (January 4, 2023 – January 3, 2025).
Li, Y. (Principal), Shemmer, O. (Co-Principal), "Building a Team for EXtragalactic AStrophysics (TEXAS) in the Dallas-Fort Worth Metroplex," Sponsored by National Science Foundation, Federal, $214457 Funded. (September 2022 – August 2024).
Shemmer, O. (Principal), "Collaborative Research: Placing High-Redshift Quasars in Perspective: a Gemini Near-Infrared Spectroscopic Survey," Sponsored by National Science Foundation, Federal, $408633 Funded. (July 1, 2018 – June 30, 2024).
Shemmer, O. (Principal), "Chandra Cycle 19, program #19700058," Sponsored by Smithsonian Astrophysical Observatory, Federal, $75344 Funded. (March 9, 2018 – March 8, 2022).
Shemmer, O. (Co-Principal), "HST Cycle 25, program #HST-GO-15118.002-A," Sponsored by Space Telescope Science Institute, Federal, $62828 Funded. (2017 – 2021).
Shemmer, O. (Co-Principal), "Chandra Cycle 21, program #21700027," Sponsored by Smithsonian Astrophysical Observatory, Federal, $5000 Funded. (February 13, 2020 – February 12, 2021).
Shemmer, O. (Principal), "Chandra Cycle 19, program #19700313," Sponsored by Smithsonian Astrophysical Observatory, Federal, $60000 Funded. (2018 – 2020).
Shemmer, O. (Principal), "XMM-Newton Cycle 15, program #78236," Sponsored by NASA, Federal, $60111 Funded. (2016 – 2019).
Shemmer, O. (Principal), "Enabling Science Grant," Sponsored by LSST Corporation, Private, $6500 Funded. (2016 – 2017).
Shemmer, O. (Principal), "Physics Seed Grant," Sponsored by UNT, University of North Texas, $5000 Funded. (2016 – 2017).
Shemmer, O. (Principal), "XMM-Newton Cycle 14, program #76074," Sponsored by NASA, Federal, $62300 Funded. (2015 – 2017).
Shemmer, O. (Principal), "XMM-Newton Cycle 11, program #69251," Sponsored by NASA, Federal, $64900 Funded. (2012 – 2014).
Shemmer, O. (Principal), "Chandra Cycle 13, program #13700361," Sponsored by Smithsonian Astrophysical Observatory, Federal, $51500 Funded. (2011 – 2014).
Shemmer, O. (Principal), "Spitzer Cycle 8, program #80093," Sponsored by NASA/JPL, Federal, $5000 Funded. (2011 – 2014).
Shemmer, O. (Principal), "Chandra Cycle 12, program #12700318," Sponsored by Smithsonian Astrophysical Observatory, Federal, $31308 Funded. (2011 – 2011).
Shemmer, O. (Co-Principal), "Herschel OT1, program #OT1_hnetzer_2," Sponsored by NASA, Federal, $28600 Funded. (2011 – 2011).
Shemmer, O. (Principal), "Faculty Research Grant," Sponsored by University of North Texas, University of North Texas, $7500 Funded. (2010 – 2010).
Shemmer, O. (Principal), "Junior Faculty Summer Research Fellowship," Sponsored by University of North Texas, University of North Texas, $5000 Funded. (2010 – 2010).
Shemmer, O. (Principal), "Faculty Research Grant," Sponsored by University of North Texas, University of North Texas, $5000 Funded. (2009 – 2009).
Shemmer, O. (Principal), "Junior Faculty Summer Research Fellowship," Sponsored by University of North Texas, University of North Texas, $5000 Funded. (2009 – 2009).
Shemmer, O. (Principal), "XMM-Newton Cycle 7, program #55175," Sponsored by NASA, Federal, $46700 Funded. (2009 – 2009).
Shemmer, O. (Principal), "Swift Cycle 4, program #04067," Sponsored by NASA, Federal, $32000 Funded. (2008 – 2008).
Shemmer, O. (Co-Principal), "HST Cycle 16, program #HST-GO-11222.008-A," Sponsored by Space Telescope Science Institute, Federal, $70000 Funded. (2007 – 2007).
Shemmer, O. (Co-Principal), "Spitzer Cycle 3, program #30314," Sponsored by NASA, Federal, $17500 Funded. (2006 – 2006).
Shemmer, O. (Principal), "Spitzer Cycle 3, program #30476," Sponsored by NASA, Federal, $30000 Funded. (2006 – 2006).
Shemmer, O. (Principal), "XMM-Newton Cycle 5, program #40207," Sponsored by NASA, Federal, $67700 Funded. (2006 – 2006).
Shemmer, O. (Co-Principal), "Spitzer Cycle 2, program #20493," Sponsored by NASA, Federal, $16500 Funded. (2005 – 2005).
Shemmer, O. (Principal), "XMM-Newton Cycle 4, program #30238," Sponsored by NASA, Federal, $52500 Funded. (2005 – 2005).

Service

University Service

Member, Graduate Student Committee for Trung Ha. (May 2023 – Present).

Member, Research Roadmap Task Force. (2021 – Present).

Other, Junior Faculty Mentor. (August 20, 2020 – Present).

Member, UNT RSAS Committee. (2019 – Present).

Chairperson, Astronomy Enrollment Ad-Hoc Committee. (2012 – Present).

Member, Astronomy Ad-Hoc Committee. (2008 – Present).

Other, Physics Colloquium. (April 9, 2024 – April 9, 2024).

Chairperson, Physics Faculty Search Committee. (July 2023 – December 2023).

Committee Chair, Undergraduate Committee, Department of Physics. (August 17, 2021 – December 2023).

Guest Speaker, Physics Colloquium. (September 12, 2023 – September 12, 2023).

Chairperson, Physics Faculty Search Committee. (September 2022 – April 2023).

Guest Speaker, Astronomy Journal Club. (April 20, 2023 – April 20, 2023).

Other, Physics Colloquium. (February 14, 2023 – February 14, 2023).

Other, Physics Colloquium. (February 7, 2023 – February 7, 2023).

Other, Physics Colloquium. (November 8, 2022 – November 8, 2022).

Member, Physics Faculty Search Committee. (January 2022 – May 2022).

Guest Speaker, Physics Colloquium. (January 25, 2022 – January 25, 2022).

Member, Scholarship and Award Committee. (2020 – 2021).

Guest Speaker, Astronomy Journal Club. (February 1, 2021 – February 1, 2021).

Member, Graduate Committee. (2015 – 2020).

Guest Speaker, Astronomy Journal Club. (October 19, 2020 – October 19, 2020).

Committee Member, TAMS Research Symposium. (September 10, 2020 – September 10, 2020).

Guest Speaker, UNT Osher Lifelong Learning Institute. (July 22, 2020 – July 22, 2020).

Member, Graduate Student Committee for Joshua Young. (August 2018 – May 2020).

Chairperson, Physics Faculty Search Committee. (September 2019 – April 2020).

Other, Physics Colloquium. (April 6, 2020 – April 6, 2020).

Other, Physics Colloquium. (April 2, 2020 – April 2, 2020).

Other, Physics Colloquium. (April 1, 2020 – April 1, 2020).

Other, Physics Colloquium. (January 28, 2020 – January 28, 2020).

Other, Physics Colloquium. (October 9, 2018 – October 9, 2018).

Other, Physics Colloquium. (February 13, 2018 – February 13, 2018).

Guest Speaker, Physics Colloquium. (January 16, 2018 – January 16, 2018).

Member, Faculty Research Committee, UNT Faculty Senate. (2014 – 2017).

Chairperson, Physics Colloquium. (2014 – 2017).

Other, Physics Colloquium. (April 11, 2017 – April 11, 2017).

Other, Physics Colloquium. (February 28, 2017 – February 28, 2017).

Other, Physics Colloquium. (February 21, 2017 – February 21, 2017).

Other, Physics Colloquium. (October 4, 2016 – October 4, 2016).

Other, Physics Colloquium. (September 20, 2016 – September 20, 2016).

Other, Physics Colloquium. (February 16, 2016 – February 16, 2016).

Member, Undergraduate Committee, Department of Physics. (2015 – 2015).

Committee Chair, Undergraduate Committee, Department of Physics. (2009 – 2015).

Other, Physics Colloquium. (October 13, 2015 – October 13, 2015).

Other, Physics Colloquium. (September 15, 2015 – September 15, 2015).

Other, Physics Colloquium. (March 24, 2015 – March 24, 2015).

Other, Physics Colloquium. (February 26, 2015 – February 26, 2015).

Other, Physics Colloquium. (February 10, 2015 – February 10, 2015).

Other, Physics Colloquium. (February 3, 2015 – February 3, 2015).

Other, Physics Colloquium. (November 4, 2014 – November 4, 2014).

Other, Physics Colloquium. (October 14, 2014 – October 14, 2014).

Guest Speaker, Physics Colloquium. (September 16, 2014 – September 16, 2014).

Other, Physics Colloquium. (September 11, 2014 – September 11, 2014).

Other, Physics Colloquium. (May 6, 2014 – May 6, 2014).

Other, Physics Colloquium. (February 4, 2014 – February 4, 2014).

Workshop Organizer, Student recruitment event at Denton High School Career Day. (2013 – 2013).

Committee Member, Undergraduate physics research panel. (2013 – 2013).

Other, Physics Colloquium. (December 3, 2013 – December 3, 2013).

Guest Speaker, Physics Colloquium. (September 24, 2013 – September 24, 2013).

Other, Physics Colloquium. (April 2, 2013 – April 2, 2013).

Guest Speaker, Physics Colloquium. (November 13, 2012 – November 13, 2012).

Other, Physics Colloquium. (October 9, 2012 – October 9, 2012).

Other, Physics Colloquium. (2011 – 2011).

Other, Physics Colloquium. (October 2011 – October 2011).

Other, Physics Colloquium. (October 2011 – October 2011).

Guest Speaker, Physics Colloquium. (September 13, 2011 – September 13, 2011).

Other, Physics Colloquium. (April 2011 – April 2011).

Other, Physics Faculty Search Committee. (2010 – 2010).

Grant Proposal Reviewer, Internal, Research Initiation Grant panel. (2010 – 2010).

Member, Election Judge, Department of Physics. (2008 – 2010).

Other, Physics Colloquium. (2009 – 2009).

Other, Physics Colloquium. (2009 – 2009).

Guest Speaker, Physics Colloquium. (September 8, 2009 – September 8, 2009).

Guest Speaker, Physics Colloquium. (January 23, 2009 – January 23, 2009).

Professional Service

Committee Member, University of Wyoming Graduate Student Committee Member, Laramie, WY. (April 2023 – Present).

Committee Member, NASA Extragalactic Database Users Committee - Advisory Panel, Pasadena, CA. (2021 – Present).

Attendee, Meeting, ALMA Proposal Preparation Workshop, College Station, TX. (April 3, 2024 – April 3, 2024).

Reviewer, Ad Hoc Reviewer, National Aeronautics and Space Administration, NASA Headquarters, DC. (March 2024 – March 2024).

Committee Chair, TEXAS Symposium 2024, Denton, TX. (March 29, 2024 – March 29, 2024).

Attendee, Meeting, 243rd American Astronomical Society meeting, New Orleans, LA. (January 2024 – January 2024).

Reviewer, Ad Hoc Reviewer, National Aeronautics and Space Administration, NASA Goddard Space Flight Center, MD. (2023 – 2023).

Reviewer, Ad Hoc Reviewer, National Aeronautics and Space Administration Postdoctoral Fellowship Program, Oak Ridge Associated Universities, TN. (March 24, 2023 – April 6, 2023).

Attendee, Meeting, 241st American Astronomical Society meeting, Seattle, WA. (January 2023 – January 2023).

Reviewer, Ad Hoc Reviewer, National Aeronautics and Space Administration Postdoctoral Fellowship Program, Oak Ridge Associated Universities, TN. (December 5, 2022 – December 6, 2022).

Reviewer, Ad Hoc Reviewer, National Aeronautics and Space Administration Astrophysics Archive Committee, NASA Goddard Space Flight Center, MD. (November 4, 2022 – November 9, 2022).

Session Chair, National Science Foundation NOIRLab Time Allocation Committee, Tucson, AZ. (October 31, 2022 – November 4, 2022).

Session Chair, Supermassive Black Hole Studies with the Legacy Survey of Space and Time - 2022: Getting Ready for Rubin Operations, Virtual, Virtual. (July 26, 2022 – July 28, 2022).

Session Chair, National Science Foundation NOIRLab Time Allocation Committee, Tucson, AZ. (May 2, 2022 – May 6, 2022).

Session Chair, National Science Foundation NOIRLab Time Allocation Committee, Tucson, AZ. (October 2021 – October 2021).

Attendee, Meeting, Gemini Observatory Science Meeting, Virtual, Virtual. (August 23, 2021 – August 26, 2021).

Attendee, Meeting, Rubin Observatory Project and Community Workshop (Rubin 2021), Virtual, Virtual. (August 9, 2021 – August 13, 2021).

Reviewer, Journal Article, The Astrophysical Journal. (July 2021 – July 2021).

Attendee, Meeting, Supermassive Black Hole Studies with the Legacy Survey of Space and Time (LSST), Virtual, Virtual. (July 12, 2021 – July 14, 2021).

Session Chair, National Science Foundation NOIRLab Time Allocation Committee, Tucson, AZ. (May 2021 – May 2021).

Member, National Science Foundation NOIRLab Proposal Preparation, Tucson, Arizona. (March 2021 – May 2021).

Attendee, Meeting, Rubin-Athena Synergy Workshop, Virtual, Virtual. (April 19, 2021 – April 23, 2021).

Reviewer, Grant Proposal, National Science Foundation Graduate Research Fellowship Program, Alexandria, VA. (January 2021 – January 2021).

Reviewer, Journal Article, The Astrophysical Journal. (2020 – 2020).

Session Chair, National Science Foundation NOIRLab Time Allocation Committee, Tucson, AZ. (November 2020 – November 2020).

Attendee, Meeting, 235th American Astronomical Society meeting, Honolulu, HI. (January 2020 – January 2020).

Reviewer, Grant Proposal, National Science Foundation Graduate Research Fellowship Program, Alexandria, VA. (January 2020 – January 2020).

Committee Member, NASA Extragalactic Database Users Committee - Advisory Panel, Pasadena, CA. (2019 – 2019).

Reviewer, Grant Proposal, National Science Foundation Graduate Research Fellowship Program, Alexandria, VA. (2019 – 2019).

Committee Member, Universita Degli Studi di Bologna, Bologna. (November 2019 – November 2019).

Attendee, Meeting, 233rd American Astronomical Society meeting, Seattle, WA. (January 2019 – January 2019).

Attendee, Meeting, Building Astronomy in Texas meeting, University of Texas at Dallas, Richardson, TX. (January 2019 – January 2019).

Reviewer, Journal Article, Monthly Notices of the Royal Astronomical Society. (2018 – 2018).

Committee Member, NASA Extragalactic Database Users Committee - Advisory Panel, Pasadena, CA. (2018 – 2018).

Reviewer, Journal Article, The Astrophysical Journal. (2018 – 2018).

Attendee, Meeting, 232nd American Astronomical Society meeting, Denver, CO. (June 2018 – June 2018).

Attendee, Meeting, "Unveiling the Physics Behind Extreme AGN Variability" meeting, St. Thomas, US Virgin Islands. (2017 – 2017).

Program Organizer, 229th American Astronomical Society meeting, Grapevine, TX. (2017 – 2017).

Committee Member, NASA Extragalactic Database Users Committee - Advisory Panel, Pasadena, CA. (2017 – 2017).

Committee Member, Universita Degli Studi di Napoli "Federico II", Napoli. (March 2017 – March 2017).

Attendee, Meeting, 227th American Astronomical Society meeting, Kissimmee, FL. (2016 – 2016).

Member, Large Synoptic Survey Telescope AGN Science Collaboration. (2016 – 2016).

Reviewer, Journal Article, Monthly Notices of the Royal Astronomical Society. (2016 – 2016).

Committee Member, NASA Extragalactic Database Users Committee, Pasadena, CA. (2016 – 2016).

Reviewer, Journal Article, The Astrophysical Journal. (2016 – 2016).

Reviewer, Grant Proposal, Chandra X-ray Observatory Time Allocation Committee, Boston, MA. (2015 – 2015).

Reviewer, Grant Proposal, Fermi Gamma-ray Space Telescope Time Allocation Committee, Annapolis, MD. (2015 – 2015).

Committee Member, LSST Observing Strategy meeting, Tucson, AZ. (2015 – 2015).

Attendee, Meeting, LSST Observing Strategy Workshop 2015, Bremerton, WA. (2015 – 2015).

Reviewer, Journal Article, Science Magazine. (2015 – 2015).

Attendee, Meeting, Building Astronomy in Texas meeting, Texas A&M University, College Station, TX. (September 2015 – September 2015).

Attendee, Meeting, 223rd American Astronomical Society meeting, National Harbor, MD. (2014 – 2014).

Attendee, Meeting, The Inner Regions of Quasars meeting, Austin, TX. (2014 – 2014).

Attendee, Meeting, The X-ray Universe 2014 meeting, Dublin. (2014 – 2014).

Attendee, Meeting, 221st American Astronomical Society meeting, Long Beach, CA. (2013 – 2013).

Attendee, Meeting, LSST@Europe: the Path to Science, Cambridge. (2013 – 2013).

Committee Member, NASA Extragalactic Database Users Committee, Pasadena, CA. (2013 – 2013).

Attendee, Meeting, Radio Astronomy in the LSST Era meeting, Charlottesville, VA. (2013 – 2013).

Attendee, Meeting, Swift Science Planning Meeting, State College, PA. (2013 – 2013).

Attendee, Meeting, The Restless Nature of AGN meeting, Naples. (2013 – 2013).

Committee Chair, 219th American Astronomical Society meeting, Austin, TX. (2012 – 2012).

Attendee, Meeting, Large Synoptic Survey Telescope All-Hands Meeting, Tucson, AZ. (2012 – 2012).

Attendee, Meeting, 217th American Astronomical Society meeting, Seattle, WA. (2011 – 2011).

Attendee, Meeting, `The X-ray Universe 2011', European Space Agency meeting, Berlin. (2011 – 2011).

Committee Chair, 215th American Astronomical Society meeting, Washington, DC. (2010 – 2010).

Attendee, Meeting, 213th American Astronomical Society meeting, Long Beach, CA. (2009 – 2009).

Attendee, Meeting, Five Years of Swift meeting, State College, PA. (2009 – 2009).

Attendee, Meeting, 'Obscured AGN Across Cosmic Time' 2007 meeting, Seeon, Bavaria. (2007 – 2007).

Attendee, Meeting, 209th American Astronomical Society 2007 meeting, Seattle, WA. (2007 – 2007).

Attendee, Meeting, X-ray Surveys: Evolution of Accretion, Star-Formation and the Large Scale Structure' 2007 meeting, Rodos. (2007 – 2007).

Attendee, Meeting, 'Active Galactic Nuclei: From Atoms to Black Holes' meeting, Tel Aviv. (2006 – 2006).

Attendee, Meeting, High Energy Astrophysics Division 2006 meeting, San Francisco, CA. (2006 – 2006).

Attendee, Meeting, 'The X-ray Universe 2005' meeting, El Escorial, Madrid. (2005 – 2005).

Attendee, Meeting, 'The 2004 Ringberg Castle Workshop on AGN Physics' meeting, Ringberg Castle. (2004 – 2004).

Attendee, Meeting, 'AGN Physics with the SDSS' meeting, Princeton, NJ. (2003 – 2003).

Attendee, Meeting, 'Active Galactic Nuclei: from Central Engine to Host Galaxy' meeting, Meudon. (2002 – 2002).

Attendee, Meeting, Guillermo Haro Advanced Lectures, 'The Starburst-AGN Connection', Tonantzintla, Puebla. (2000 – 2000).

Attendee, Meeting, Meeting on the 1999 Leonid Meteor Storm, 'Leonids 1999', Tel Aviv. (2000 – 2000).

Attendee, Meeting, WE-Heraeus-seminar no. 226, 'Observational and theoretical progress in the study of Narrow-line Seyfert 1 galaxies', Bad-Honnef. (1999 – 1999).

Public Service

Guest Speaker, Research on Tap, Denton, Texas. (July 20, 2022 – July 20, 2022).

Guest Speaker, Osher Lifelong Learning Institute, Frisco, Texas. (July 15, 2022 – July 15, 2022).

Other, Frisco Independent School District, Virtual/Zoom, TX. (October 12, 2020 – October 12, 2020).

Guest Speaker, McKinney Boyd High School Science Club, McKinney, Texas. (November 4, 2019 – November 4, 2019).

Other, Haggard Middle School Career Day, Plano, Texas. (October 4, 2019 – October 4, 2019).

Guest Speaker, 50th Anniversary of Apollo 11 and the University of Texas at Dallas meeting, Richardson, Texas. (September 28, 2019 – September 28, 2019).

Guest Speaker, Texas Astronomical Society meeting, Richardson, Texas. (April 22, 2016 – April 22, 2016).

Other, Haggard Middle School Career Day, Plano, Texas. (2013 – 2013).

Other, Haggard Middle School Science Fair, Plano, Texas. (2013 – 2013).

Guest Speaker, Congregation Nishmat Am, Plano, Texas. (October 27, 2012 – October 27, 2012).

Guest Speaker, Richland Community College (DCCCD), Dallas, Texas. (2011 – 2011).

Program Organizer, University of North Texas, Denton, Texas. (2011 – 2011).

Program Organizer, University of North Texas, Denton, Texas. (2011 – 2011).

Guest Speaker, ‘Cafe Israel’ organization, Plano, Texas. (2011 – 2011).

Program Organizer, University of North Texas, Denton, Texas. (2010 – 2010).

Program Organizer, University of North Texas, Denton, Texas. (2009 – 2009).

Program Organizer, University of North Texas, Denton, Texas. (2009 – 2009).

Guest Speaker, The Pennsylvania State University, University Park, Pennsylvania. (2005 – 2008).

Other, Tel Aviv University, Tel Aviv. (1996 – 2004).