2004/01/16 by Christopher W. Mauche, D. A. Liedahl, Duane A. Liedahl +4 · 7 citations
Chemistry · Physics and Astronomy · #Accretion (finance) #Astrophysical Phenomena and Observations #Astrophysics #Astrophysics and Cosmic Phenomena #Atmosphere (unit) #Atomic physics #Chemistry #Compton scattering #Nuclear physics #Opacity #Optics #Photoelectric effect #Photon #Physics #Radiation #Recombination #Scattering #astro-ph
paper · pdf · doi:10.1086/382938
published in The Astrophysical Journal 606(1), 168-172 (IOP Publishing) · 4 pages including 4 encapsulated postscript figures; LaTeX format, uses aastex.cls and emulateapj5.sty; accepted on 2004 January 13 for publication in The Astrophysical Journal
arxiv created 2004/01/16 · openalex publication_date 2004/04/20 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
By means of a Monte Carlo code that accounts for Compton scattering and photoabsorption followed by recombination, we investigate the radiation transfer of Lyα, Heα, 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%-105%) increases the flux of the Lyα and Heα emission lines of H- and He-like C and O escaping the disk atmosphere.