Relativistic Broadening of Iron Emission Lines in a Sample of Active Galactic Nuclei
Abstract
We present a uniform X-ray spectral analysis of eight type-1 active galactic nuclei that have been previously observed with relativistically broadened iron emission lines. Utilizing data from the XMM-Newton European Photon Imaging Camera (EPIC-pn) we carefully model the spectral continuum, taking complex intrinsic absorption and emission into account. We then proceed to model the broad Fe Kα feature in each source with two different accretion disk emission line codes, as well as a self-consistent, ionized accretion disk spectrum convolved with relativistic smearing from the inner disk. Comparing the results, we show that relativistic blurring of the disk emission is required to explain the spectrum in most sources, even when one models the full reflection spectrum from the photoionized disk.
- Publication:
-
The Astrophysical Journal
- Pub Date:
- September 2009
- DOI:
- 10.1088/0004-637X/702/2/1367
- arXiv:
- arXiv:0907.3850
- Bibcode:
- 2009ApJ...702.1367B
- Keywords:
-
- accretion;
- accretion disks;
- black hole physics;
- galaxies: active;
- galaxies: Seyfert;
- X-rays: galaxies;
- Astrophysics - High Energy Astrophysical Phenomena
- E-Print:
- 50 pages (preprint format), 24 figures. Accepted by ApJ