Reprocessing of Soft X-ray Emission Lines in Black Hole Accretion Disks

Details Reprocessing of Soft X-ray Emission Lines in Black Hole Accretion Disks Reprocessing of Soft X-ray Emission Lines in Black Hole Accretion Disks

2004-01-16

arxiv.org/abs/astro-ph/0401328v1

Astrophys.J. 606 (2004) 168-172

Astronomy and Astrophysics

Astrophysics

4 pages including 4 encapsulated postscript figures; LaTeX format, uses aastex.cls and emulateapj5.sty; accepted on 2004 Janua

Scientific paper

10.1086/382938

By means of a Monte Carlo code that accounts for Compton scattering and photoabsorption followed by recombination, we have investigated the radiation transfer of Ly alpha, He alpha, and recombination continua photons of H- and He-like C, N, O, and Ne produced in the photoionized atmosphere of a relativistic black hole accretion disk. We find that photoelectric opacity causes significant attenuation of photons with energies above the O VIII K-edge; that the conversion efficiencies of these photons into lower-energy lines and recombination continua are high; and that accounting for this reprocessing significantly (by factors of 21% to 105%) increases the flux of the Ly alpha and He alpha emission lines of H- and He-like C and O escaping the disk atmosphere.

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