Fe K line profile in PG quasars: the averaged shape and Eddington ratio dependence
Abstract
Fe K emission line is a powerful probe of the inner part of an accretion disk. We analyze X-ray spectra of 43 Palomar-Green (PG) quasars taken from Boroson & Green (1992) observed with XMM-Newton and make an averaged Fe K line profile. We study the Eddington ratio dependence of the Fe K line profile. The width of the Fe line becomes broader (σ=0.1 to 0.7 keV) and its peak energy becomes higher (6.4 to 6.8 keV) as the Eddington ratio gets larger.
- Publication:
-
Black Holes from Stars to Galaxies -- Across the Range of Masses
- Pub Date:
- April 2007
- DOI:
- 10.1017/S1743921307005571
- Bibcode:
- 2007IAUS..238..385I
- Keywords:
-
- Quasars;
- X-rays;
- accretion;
- accretion disks