Accretion disk self-eclipse - X-ray light curve and emission line

Details Accretion disk self-eclipse - X-ray light curve and emission line Accretion disk self-eclipse - X-ray light curve and emission line

Nov 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992apj...400..163b&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 400, no. 1, p. 163-169.

Astronomy and Astrophysics

Astronomy

31

Accretion Disks, Black Holes (Astronomy), Light Curve, Seyfert Galaxies, X Ray Sources, Emission Spectra, Line Shape, Line Spectra, Variability

Scientific paper

We develop a method of calculating the X-ray signal from a 'spot' corotating with an accretion disk around a black hole and the emission line from the X-ray-illuminated disk. The disk self-eclipse is considered, and all effects of general relativity on the motion of photons are included with no approximation. The eclipse strongly affects the shape of the X-ray light curve of the spot and the K fluorescent line irradiated by the disk. The FWHM and strength of the line profile are reduced significantly if the eclipsed region of the orbit is very deep. For a given radius of a ring in the disk, this occurs when the eclipsed region of the orbit is deeper than pi/2. The centroid of a line profile is also subject to the eclipse effect.

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