| |
 |
| Paper: |
Ionized Disc Models of MCG-6-30-15 |
| Volume: |
290, Active Galactic Nuclei: from Central Engine to Host Galaxy |
| Page: |
77 |
| Authors: |
Ballantyne, D. R.; Fabian, A. C.; Vaughan, S. |
| Abstract: |
I will present and discuss calculations of the soft X-ray emission features in the reflection spectra of photoionized accretion discs. We consider different ionization parameters, abundances and density distributions. The spectra exhibit lines from C VI, N VII, O VII, O VIII & Fe XVII-XVIII. For constant density models, the O VIII line typically has an EW < 100 eV. This can be made larger by increasing the O abundance, but this results in a much stronger O VII line. Hydrostatic models produce much weaker (EWs < 40 eV) and broader lines due to the presence of an ionized skin on the surface of the atmosphere. In all cases Compton broadening produces lines with a minimum width much larger than 10 eV. Therefore, it is unlikely that reflection from an ionized disc can produce strong soft X-ray emission lines with sharp blue wings. |
|
|
|
|
|
