Iron Line Profiles from Relativistic Elliptical Accretion Disks

Details Iron Line Profiles from Relativistic Elliptical Accretion Disks Iron Line Profiles from Relativistic Elliptical Accretion Disks

Sep 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002jkas...35..123c&link_type=abstract

Journal of the Korean Astronomical Society, vol. 35, no. 3, pp. 123-130

Physics

1

Accretion, Line Profiles, Relativity, X-Rays: Spectra, Black Hole Physics

Scientific paper

An elliptical accretion disk may be formed by tidally disrupted debris of a flying-by star in an active galactic nucleus (AGN) or by tidal perturbation due to a companion in a binary black hole system. We investigate the iron Kalpha line profiles expecting from a geometrically thin, relativistic, elliptical disk in terms of model parameters, and find that a broad and skewed line profile can be reproduced well. Its shape is variable to the model parameters, such as, the emissivity power-law index, the ellipticity of the disk, and the major axis orientation of the elliptical accretion disk. We suggest that our results may be useful to search for such an elliptical disk and consequently the tidal disruption event.

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