Radiation from accretion discs

Details Radiation from accretion discs Radiation from accretion discs

Mar 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988a%26a...193l...1a&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 193, no. 1-2, March 1988, p. L1-L3.

Astronomy and Astrophysics

Astrophysics

30

Accretion Disks, Radiative Transfer, Stellar Atmospheres, Stellar Coronas, Energy Dissipation, Self Consistent Fields, Stellar Models, Temperature Distribution

Scientific paper

Gray models for accretion disks with self-consistent radiation fields are constructed. High-temperature coronae are found to lead to emission components in the lines of hydrogen and helium. The gray radiative transfer problem in an accretion disk is solved self-consistently from first principles. The temperature distribution in the disk is derived, and the formation of a hot corona above the main part of the disk is demonstrated. The hot corona contains enough emission power to give rise to strong H and He emission lines, and may explain the observed spectra in some cataclysmic variables.

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