X-ray Reflected Spectra From Accretion Disc Models

Details X-ray Reflected Spectra From Accretion Disc Models X-ray Reflected Spectra From Accretion Disc Models

Jan 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aas...21348404g&link_type=abstract

American Astronomical Society, AAS Meeting #213, #484.04; Bulletin of the American Astronomical Society, Vol. 41, p.453

Astronomy and Astrophysics

Astronomy

Scientific paper

In this paper we present our current results on the study of illuminated accretion disc models. In particular, we consider the effects of incident X-rays on the surface of an accretion disc under hydrostatic equilibrium, by solving simultaneously the equations of radiative transfer, pressure balance and ionization equilibrium over a large range of column densities. We assume plane-parallel geometry and azimuthal symmetry, such that each calculation corresponds to a ring at a given distance from the central object. Our models include recent and complete atomic data for K-shell of the iron isonuclear sequence. We analyze the iron Kα emission in the reflected (reprocessed) spectrum for various values of mass accretion rate, incident radiation and distance to the central object.

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