X-ray heated accretion discs around stellar mass black holes

Ivan Hubeny, Dayal T. Wickramasinghe

Research output: Contribution to journalConference articlepeer-review

1 Scopus citations


We investigate the effects of irradiation on the vertical structure of accretion discs around black holes and its impact on the emergent energy distribution. Models are presented for a 10 Solar mass black hole in a low mass X-ray binary assuming a black body spectrum for the incident radiation. We show that for a disc annulus at a given radius, the spectra become increasingly distorted as the incident flux increases relative to the viscously generated heating flux in the disc. Significant effects are apparent for rings even at distances of ̃ 10; 000 Schwarzschild radii from the black hole for realistic dilution factors.

Original languageEnglish (US)
Pages (from-to)200-201
Number of pages2
JournalRevista Mexicana de Astronomia y Astrofisica: Serie de Conferencias
StatePublished - 2004
Externally publishedYes
EventIAU Colloquium 194 - Compact Binaries in the Galaxy and Beyond - La Paz, B.C. Sur, Mexico
Duration: Nov 17 2003Nov 22 2003

ASJC Scopus subject areas

  • Space and Planetary Science
  • Astronomy and Astrophysics


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