THE BLACK HOLE SPIN AND SOFT X-RAY EXCESS OF THE LUMINOUS SEYFERT GALAXY FAIRALL 9
We present an analysis of all XMM-Newton and Suzaku X-ray spectra of the nearby luminous Seyfert galaxy Fairall 9. Confirming previous analyses, we find robust evidence for a broad iron line associated with X-ray reflection from the innermost accretion disk. By fitting a spectral model that includes...
| Main Authors: | , , , , , , |
|---|---|
| Other Authors: | |
| Format: | Article |
| Language: | en_US |
| Published: |
IOP Publishing
2015
|
| Online Access: | http://hdl.handle.net/1721.1/95500 |
| _version_ | 1826206924663685120 |
|---|---|
| author | Lohfink, Anne M. Reynolds, Christopher S. Miller, Jon M. Brenneman, Laura W. Mushotzky, Richard F. Nowak, Michael A. Fabian, Andrew C. |
| author2 | MIT Kavli Institute for Astrophysics and Space Research |
| author_facet | MIT Kavli Institute for Astrophysics and Space Research Lohfink, Anne M. Reynolds, Christopher S. Miller, Jon M. Brenneman, Laura W. Mushotzky, Richard F. Nowak, Michael A. Fabian, Andrew C. |
| author_sort | Lohfink, Anne M. |
| collection | MIT |
| description | We present an analysis of all XMM-Newton and Suzaku X-ray spectra of the nearby luminous Seyfert galaxy Fairall 9. Confirming previous analyses, we find robust evidence for a broad iron line associated with X-ray reflection from the innermost accretion disk. By fitting a spectral model that includes a relativistically ionized reflection component, we examine the constraints on the inclination of the inner accretion disk and the black hole spin, and the complications introduced by the presence of a photoionized emission line system. Employing multi-epoch fitting, we attempt to obtain robust and concordant measures of the accretion disk parameters. We also clearly see a soft X-ray excess in Fairall 9. During certain epochs, the soft excess can be described with the same disk reflection component that produces the iron line. However, there are epochs where an additional soft component is required. This can be attributed to either an additional highly ionized, strongly blurred disk reflection component or a new X-ray continuum component. |
| first_indexed | 2024-09-23T13:40:44Z |
| format | Article |
| id | mit-1721.1/95500 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T13:40:44Z |
| publishDate | 2015 |
| publisher | IOP Publishing |
| record_format | dspace |
| spelling | mit-1721.1/955002022-10-01T16:26:20Z THE BLACK HOLE SPIN AND SOFT X-RAY EXCESS OF THE LUMINOUS SEYFERT GALAXY FAIRALL 9 Lohfink, Anne M. Reynolds, Christopher S. Miller, Jon M. Brenneman, Laura W. Mushotzky, Richard F. Nowak, Michael A. Fabian, Andrew C. MIT Kavli Institute for Astrophysics and Space Research Nowak, Michael A. We present an analysis of all XMM-Newton and Suzaku X-ray spectra of the nearby luminous Seyfert galaxy Fairall 9. Confirming previous analyses, we find robust evidence for a broad iron line associated with X-ray reflection from the innermost accretion disk. By fitting a spectral model that includes a relativistically ionized reflection component, we examine the constraints on the inclination of the inner accretion disk and the black hole spin, and the complications introduced by the presence of a photoionized emission line system. Employing multi-epoch fitting, we attempt to obtain robust and concordant measures of the accretion disk parameters. We also clearly see a soft X-ray excess in Fairall 9. During certain epochs, the soft excess can be described with the same disk reflection component that produces the iron line. However, there are epochs where an additional soft component is required. This can be attributed to either an additional highly ionized, strongly blurred disk reflection component or a new X-ray continuum component. 2015-02-25T13:15:16Z 2015-02-25T13:15:16Z 2012-09 2012-06 Article http://purl.org/eprint/type/JournalArticle 0004-637X 1538-4357 http://hdl.handle.net/1721.1/95500 Lohfink, Anne M., Christopher S. Reynolds, Jon M. Miller, Laura W. Brenneman, Richard F. Mushotzky, Michael A. Nowak, and Andrew C. Fabian. “THE BLACK HOLE SPIN AND SOFT X-RAY EXCESS OF THE LUMINOUS SEYFERT GALAXY FAIRALL 9.” The Astrophysical Journal 758, no. 1 (September 26, 2012): 67. © 2012 The American Astronomical Society en_US http://dx.doi.org/10.1088/0004-637x/758/1/67 The Astrophysical Journal Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf IOP Publishing American Astronomical Society |
| spellingShingle | Lohfink, Anne M. Reynolds, Christopher S. Miller, Jon M. Brenneman, Laura W. Mushotzky, Richard F. Nowak, Michael A. Fabian, Andrew C. THE BLACK HOLE SPIN AND SOFT X-RAY EXCESS OF THE LUMINOUS SEYFERT GALAXY FAIRALL 9 |
| title | THE BLACK HOLE SPIN AND SOFT X-RAY EXCESS OF THE LUMINOUS SEYFERT GALAXY FAIRALL 9 |
| title_full | THE BLACK HOLE SPIN AND SOFT X-RAY EXCESS OF THE LUMINOUS SEYFERT GALAXY FAIRALL 9 |
| title_fullStr | THE BLACK HOLE SPIN AND SOFT X-RAY EXCESS OF THE LUMINOUS SEYFERT GALAXY FAIRALL 9 |
| title_full_unstemmed | THE BLACK HOLE SPIN AND SOFT X-RAY EXCESS OF THE LUMINOUS SEYFERT GALAXY FAIRALL 9 |
| title_short | THE BLACK HOLE SPIN AND SOFT X-RAY EXCESS OF THE LUMINOUS SEYFERT GALAXY FAIRALL 9 |
| title_sort | black hole spin and soft x ray excess of the luminous seyfert galaxy fairall 9 |
| url | http://hdl.handle.net/1721.1/95500 |
| work_keys_str_mv | AT lohfinkannem theblackholespinandsoftxrayexcessoftheluminousseyfertgalaxyfairall9 AT reynoldschristophers theblackholespinandsoftxrayexcessoftheluminousseyfertgalaxyfairall9 AT millerjonm theblackholespinandsoftxrayexcessoftheluminousseyfertgalaxyfairall9 AT brennemanlauraw theblackholespinandsoftxrayexcessoftheluminousseyfertgalaxyfairall9 AT mushotzkyrichardf theblackholespinandsoftxrayexcessoftheluminousseyfertgalaxyfairall9 AT nowakmichaela theblackholespinandsoftxrayexcessoftheluminousseyfertgalaxyfairall9 AT fabianandrewc theblackholespinandsoftxrayexcessoftheluminousseyfertgalaxyfairall9 AT lohfinkannem blackholespinandsoftxrayexcessoftheluminousseyfertgalaxyfairall9 AT reynoldschristophers blackholespinandsoftxrayexcessoftheluminousseyfertgalaxyfairall9 AT millerjonm blackholespinandsoftxrayexcessoftheluminousseyfertgalaxyfairall9 AT brennemanlauraw blackholespinandsoftxrayexcessoftheluminousseyfertgalaxyfairall9 AT mushotzkyrichardf blackholespinandsoftxrayexcessoftheluminousseyfertgalaxyfairall9 AT nowakmichaela blackholespinandsoftxrayexcessoftheluminousseyfertgalaxyfairall9 AT fabianandrewc blackholespinandsoftxrayexcessoftheluminousseyfertgalaxyfairall9 |