Accretion disks around massive black holes: Persistent emission spectra
Detailed model calculations of steady X-ray emission from accretion disks around massive black holes are presented. The general emission features characterizing different disk models are summarized for a wide region in (M, M) parameter space. Continuous radiation spectra are plotted for the disk models for black holes of mass M/M/sub sun/=10/sup 2/--10/sup 3/ accreting gas at a rate M/(10/sup 17/ g s/sup -1/) =1--10/sup 4/. The results may be relevant to X-ray generation in globular clusters and (or) in active galactic nuclei and quasars. In particular, observations of galactic X-ray source spectra indicate that, for many sources, the ''standard'' disk and ''two-temperature'' disk models for accretion onto a massive black hole do not apply, while the optically thin bremsstrahlung model is consistent with the data.
- Research Organization:
- Department of Physics, Yale University, New Haven, CT 06520
- OSTI ID:
- 6879484
- Journal Information:
- Astrophys. J.; (United States), Journal Name: Astrophys. J.; (United States) Vol. 224:1; ISSN ASJOA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
Radio & X-Ray Sources
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BLACK HOLES
BREMSSTRAHLUNG
COSMIC RAY SOURCES
COSMIC X-RAY SOURCES
ELECTROMAGNETIC RADIATION
IONIZING RADIATIONS
MATHEMATICAL MODELS
RADIATIONS
SPECTRA
STAR ACCRETION
STAR CLUSTERS
STAR EVOLUTION
STAR MODELS
X RADIATION
X-RAY SPECTRA