Spectral Energy Distribution of Super-Eddington Flows

Details Spectral Energy Distribution of Super-Eddington Flows Spectral Energy Distribution of Super-Eddington Flows

Oct 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008aspc..396...67h&link_type=abstract

Formation and Evolution of Galaxy Disks ASP Conference Series, Vol. 396, Proceedings of the conference held 1-5 October, 2007 at

Astronomy and Astrophysics

Astronomy

Scientific paper

We discuss the problem of the limit on the accretion rate onto a black hole. To understand the observed spectral features of potentially supercritical accretion flows (accretion above the classical Eddington limit) in ultraluminous X-ray sources (ULX) and active galactic nuclei (AGN), we calculate spectral energy distributions (SEDs) of highly accreting black holes with masses in the range of 10 to 10^{8} M_&sun;, surrounded by an accretion disk and an extended atmosphere. Continuum features like the peak intensity of thermal emission at 1 keV as well as the iron K line complex between 6 keV and 8 keV are analyzed for various inclination angles, central masses and accretion rates. Both line and continuum emission depend considerably on these parameters, offering a chance to estimate these often unknown quantities of observed accretion disk systems.

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