Amplification and variability of the AGN X-ray emission due to microlensing

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dc.creatorPopovic, L. C.
dc.creatorJovanovic, P.
dc.creatorPetrovic, T.
dc.creatorShalyapin, V. N.
dc.date2006-11-01
dc.date.accessioned2026-07-07T07:30:36Z
dc.date.available2026-07-07T07:30:36Z
dc.descriptionWe consider the contribution of microlensing to the AGN Fe K$α$ line and X-ray continuum amplification and variation. To investigate the variability of the line and X-ray continuum, we studied the effects of microlensing on quasar X-ray spectra produced by crossing of a microlensing pattern across a standard relativistic accretion disk. To describe the disk emission we used a ray tracing method considering both metrics, Schwarzschild and Kerr. We found that the Fe K$α$ and continuum may experience significant amplification by a microlensing event (even for microlenses of very small mass). Also, we investigate a contribution of microlensing to the X-ray variability of high-redshifted QSOs, finding that cosmologically distributed deflector may contribute significantly to the X-ray variability of high-redshifted QSOs (z>2).
dc.description4 pages, 2 figures, accepted for publication in Astronomische Nachrichten, proceedings of the ESAC Workshop "Variable and Broad Iron Lines around Black Holes"
dc.identifierhttps://arxiv.org/abs/astro-ph/0611016
dc.identifierhttp://arxiv.org/abs/astro-ph/0611016
dc.identifierAstron.Nachr. 10 (2006) 981-984
dc.identifierdoi:10.1002/asna.200610675
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/118462
dc.subjectAstrophysics
dc.titleAmplification and variability of the AGN X-ray emission due to microlensing
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