X-ray Emission From Accretion Disks of AGN: Signatures of Supermassive Black Holes
| dc.creator | Jovanović, Predrag | |
| dc.creator | Popović, Luka Č. | |
| dc.date | 2009-03-05 | |
| dc.date.accessioned | 2026-07-07T12:55:59Z | |
| dc.date.available | 2026-07-07T12:55:59Z | |
| dc.description | In this chapter we discuss the X-ray radiation from relativistic accretion disks around supermassive black holes, supposed to exist in the centers of Active Galactic Nuclei (AGN). Our focus is on the X-ray radiation, especially in the Fe K$α$ line which originates in the innermost parts of an accretion disk. Moreover, here we discuss some effects which can disturb the Fe K$α$ profile and cause its rapid and irregular variability, observed in the X-ray spectra of some AGN. We will pay attention to three such effects: perturbations in the disk emissivity, absorbtion by warm absorbers and gravitational microlensing. The X-ray emission from accretion disks around non-rotating (Schwarzschild metric), as well as rotating (Kerr metric) supermassive black holes, is discussed. The X-ray radiation of AGN is probably produced in a compact region near their central supermassive black holes, and can provide us some essential information about the plasma conditions and the space-time geometry in these regions. The goal of this chapter is mainly to present a short overview of some important and recent investigations in this field. | |
| dc.description | 62 pages, 24 figures, to appear as a chapter of the book "Black Holes: Properties, Formation and Features" (to be published by Nova Science Publishers, Inc) | |
| dc.identifier | https://arxiv.org/abs/0903.0978 | |
| dc.identifier | http://arxiv.org/abs/0903.0978 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/224435 | |
| dc.subject | Astrophysics of Galaxies | |
| dc.title | X-ray Emission From Accretion Disks of AGN: Signatures of Supermassive Black Holes | |
| dc.type | text |