%0 Journal Article %1 Jovanović2009 %A Jovanović, Predrag %A Č. Popović, Luka %D 2009 %K AGN SMBH accretion black disk holes %T X-ray Emission From Accretion Disks of AGN: Signatures of Supermassive Black Holes %U http://arxiv.org/abs/0903.0978 %X 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$\alpha$ line which originates in the innermost parts of an accretion disk. Moreover, here we discuss some effects which can disturb the Fe K$\alpha$ 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.

@article{Jovanović2009, abstract = { 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$\alpha$ line which originates in the innermost parts of an accretion disk. Moreover, here we discuss some effects which can disturb the Fe K$\alpha$ 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. }, added-at = {2009-08-24T21:24:58.000+0200}, author = {Jovanović, Predrag and Č. Popović, Luka}, biburl = {https://www.bibsonomy.org/bibtex/2c14899767ab47148032aef8a477c6b47/astravinsky}, description = {X-ray Emission From Accretion Disks of AGN: Signatures of Supermassive Black Holes}, interhash = {c8613f29a6991a6798b819540b68e303}, intrahash = {c14899767ab47148032aef8a477c6b47}, keywords = {AGN SMBH accretion black disk holes}, note = {cite arxiv:0903.0978 Comment: 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)}, timestamp = {2009-08-24T21:24:58.000+0200}, title = {X-ray Emission From Accretion Disks of AGN: Signatures of Supermassive Black Holes}, url = {http://arxiv.org/abs/0903.0978}, year = 2009 }