The Most Obscured AGNs in the XMM-SERVS Fields
We perform X-ray spectral analyses to derive the characteristics (e.g., column density, X-ray luminosity) of ≈10,200 active galactic nuclei (AGNs) in the XMM-Spitzer Extragalactic Representative Volume Survey, which was designed to investigate the growth of supermassive black holes across a wide dyn...
| Main Authors: | , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2023-01-01
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| Series: | The Astrophysical Journal |
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| Online Access: | https://doi.org/10.3847/1538-4357/accea6 |
| _version_ | 1827826429853696000 |
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| author | Wei Yan W. N. Brandt Fan Zou Shifu Zhu Chien-Ting J. Chen Ryan C. Hickox Bin Luo Qingling Ni David M. Alexander Franz E. Bauer Cristian Vignali Fabio Vito |
| author_facet | Wei Yan W. N. Brandt Fan Zou Shifu Zhu Chien-Ting J. Chen Ryan C. Hickox Bin Luo Qingling Ni David M. Alexander Franz E. Bauer Cristian Vignali Fabio Vito |
| author_sort | Wei Yan |
| collection | DOAJ |
| description | We perform X-ray spectral analyses to derive the characteristics (e.g., column density, X-ray luminosity) of ≈10,200 active galactic nuclei (AGNs) in the XMM-Spitzer Extragalactic Representative Volume Survey, which was designed to investigate the growth of supermassive black holes across a wide dynamic range of cosmic environments. Using physical torus models (e.g., Borus02) and a Bayesian approach, we uncover 22 representative Compton-thick (CT; N _H > 1.5 × 10 ^24 cm ^−2 ) AGN candidates with good signal-to-noise ratios as well as a large sample of 136 heavily obscured AGNs. We also find an increasing CT fraction ( f _CT ) from low ( z < 0.75) to high ( z > 0.75) redshift. Our CT candidates tend to show hard X-ray spectral shapes and dust extinction in their spectral energy distribution fits, which may shed light on the connection between AGN obscuration and host-galaxy evolution. |
| first_indexed | 2024-03-12T03:09:52Z |
| format | Article |
| id | doaj.art-12ce69f4155d44eba553518cf2e13ee5 |
| institution | Directory Open Access Journal |
| issn | 1538-4357 |
| language | English |
| last_indexed | 2024-03-12T03:09:52Z |
| publishDate | 2023-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | The Astrophysical Journal |
| spelling | doaj.art-12ce69f4155d44eba553518cf2e13ee52023-09-03T14:26:26ZengIOP PublishingThe Astrophysical Journal1538-43572023-01-0195112710.3847/1538-4357/accea6The Most Obscured AGNs in the XMM-SERVS FieldsWei Yan0https://orcid.org/0000-0001-9519-1812W. N. Brandt1https://orcid.org/0000-0002-0167-2453Fan Zou2https://orcid.org/0000-0002-4436-6923Shifu Zhu3https://orcid.org/0000-0002-1653-4969Chien-Ting J. Chen4https://orcid.org/0000-0002-4945-5079Ryan C. Hickox5https://orcid.org/0000-0003-1468-9526Bin Luo6https://orcid.org/0000-0002-9036-0063Qingling Ni7https://orcid.org/0000-0002-8577-2717David M. Alexander8https://orcid.org/0000-0002-5896-6313Franz E. Bauer9https://orcid.org/0000-0002-8686-8737Cristian Vignali10https://orcid.org/0000-0002-8853-9611Fabio Vito11https://orcid.org/0000-0003-0680-9305Department of Astronomy and Astrophysics, 525 Davey Lab, The Pennsylvania State University, University Park , PA 16802, USA ; wmy5111@psu.edu; Institute for Gravitation and the Cosmos, The Pennsylvania State University, University Park , PA 16802, USADepartment of Astronomy and Astrophysics, 525 Davey Lab, The Pennsylvania State University, University Park , PA 16802, USA ; wmy5111@psu.edu; Institute for Gravitation and the Cosmos, The Pennsylvania State University, University Park , PA 16802, USA; Department of Physics, 104 Davey Lab, The Pennsylvania State University, University Park , PA 16802, USADepartment of Astronomy and Astrophysics, 525 Davey Lab, The Pennsylvania State University, University Park , PA 16802, USA ; wmy5111@psu.edu; Institute for Gravitation and the Cosmos, The Pennsylvania State University, University Park , PA 16802, USADepartment of Astronomy and Astrophysics, 525 Davey Lab, The Pennsylvania State University, University Park , PA 16802, USA ; wmy5111@psu.edu; Institute for Gravitation and the Cosmos, The Pennsylvania State University, University Park , PA 16802, USAScience and Technology Institute, Universities Space Research Association , Huntsville, AL 35805, USA; Astrophysics Office , NASA Marshall Space Flight Center, ST12, Huntsville, AL 35812, USADepartment of Physics and Astronomy , Dartmouth College, Hanover, NH 03755, USASchool of Astronomy and Space Science, Nanjing University , Nanjing, Jiangsu 210093, People's Republic of China; Key Laboratory of Modern Astronomy and Astrophysics (Nanjing University) , Ministry of Education, Nanjing 210093, People's Republic of ChinaMax-Planck-Institut für extraterrestrische Physik (MPE) , Gießenbachstraße 1, D-85748 Garching bei München, GermanyCentre for Extragalactic Astronomy, Department of Physics, Durham University , South Road, Durham, DH1 3LE, UKInstituto de Astrofísica, Facultad de Física, Pontificia Universidad Católica de Chile , Campus San Joaquín, Av. Vicuña Mackenna 4860, Macul Santiago, 7820436, Chile; Centro de Astroingeniería, Facultad de Física, Pontificia Universidad Católica de Chile , Campus San Joaquín, Av. Vicuña Mackenna 4860, Macul Santiago, 7820436, Chile; Millennium Institute of Astrophysics , Nuncio Monseñor Sótero Sanz 100, Of 104, Providencia, Santiago, ChileDipartimento di Fisica e Astronomia “Augusto Righi,” Alma Mater Studiorum, Università di Bologna , Via Gobetti 93/2, I-40129 Bologna, Italy; INAF—Osservatorio di Astrofisica e Scienza dello Spazio di Bologna , Via Gobetti 93/3, I-40129 Bologna, ItalyINAF—Osservatorio di Astrofisica e Scienza dello Spazio di Bologna , Via Gobetti 93/3, I-40129 Bologna, ItalyWe perform X-ray spectral analyses to derive the characteristics (e.g., column density, X-ray luminosity) of ≈10,200 active galactic nuclei (AGNs) in the XMM-Spitzer Extragalactic Representative Volume Survey, which was designed to investigate the growth of supermassive black holes across a wide dynamic range of cosmic environments. Using physical torus models (e.g., Borus02) and a Bayesian approach, we uncover 22 representative Compton-thick (CT; N _H > 1.5 × 10 ^24 cm ^−2 ) AGN candidates with good signal-to-noise ratios as well as a large sample of 136 heavily obscured AGNs. We also find an increasing CT fraction ( f _CT ) from low ( z < 0.75) to high ( z > 0.75) redshift. Our CT candidates tend to show hard X-ray spectral shapes and dust extinction in their spectral energy distribution fits, which may shed light on the connection between AGN obscuration and host-galaxy evolution.https://doi.org/10.3847/1538-4357/accea6Active galactic nucleiAGN host galaxiesX-ray active galactic nucleiX-ray astronomyExtragalactic astronomy |
| spellingShingle | Wei Yan W. N. Brandt Fan Zou Shifu Zhu Chien-Ting J. Chen Ryan C. Hickox Bin Luo Qingling Ni David M. Alexander Franz E. Bauer Cristian Vignali Fabio Vito The Most Obscured AGNs in the XMM-SERVS Fields The Astrophysical Journal Active galactic nuclei AGN host galaxies X-ray active galactic nuclei X-ray astronomy Extragalactic astronomy |
| title | The Most Obscured AGNs in the XMM-SERVS Fields |
| title_full | The Most Obscured AGNs in the XMM-SERVS Fields |
| title_fullStr | The Most Obscured AGNs in the XMM-SERVS Fields |
| title_full_unstemmed | The Most Obscured AGNs in the XMM-SERVS Fields |
| title_short | The Most Obscured AGNs in the XMM-SERVS Fields |
| title_sort | most obscured agns in the xmm servs fields |
| topic | Active galactic nuclei AGN host galaxies X-ray active galactic nuclei X-ray astronomy Extragalactic astronomy |
| url | https://doi.org/10.3847/1538-4357/accea6 |
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