Production of gamma-ray bursts near rapidly rotating accreting black holes

Journal Article · Sun May 15 04:00:00 EDT 1977 · Astrophys. J.; (United States)

DOI:https://doi.org/10.1086/155251· OSTI ID:7319431

Piran, T; Shaham, J

A model for the production of ..gamma..-rays during the occurrence of instabilities in accretion of matter onto rapidly rotating black holes is described. Gamma rays are produced by Compton scattering of infalling X-ray photons, whenever the optical depth in the deep ergosphere is of the order of the gravitational distance. The initial photons are produced farther away by viscous processes in the infalling plasma, and contribute to the lower-energy regime of the burst spectrum, along with low-energy photons produced in the deep ergosphere. Calculated spectra for that specific Compton scattering may account for burst spectra in the range approx.300 keV--3 MeV.

• Research Organization: Racah Institute of Physics, Hebrew University, Jerusalem
• OSTI ID: 7319431
• Journal Information: Astrophys. J.; (United States), Journal Name: Astrophys. J.; (United States) Vol. 214:1; ISSN ASJOA
• Country of Publication: United States
• Language: English

Related Subjects

640102* -- Astrophysics & Cosmology-- Stars & Quasi-Stellar
Radio & X-Ray Sources
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BASIC INTERACTIONS
BLACK HOLES
COMPTON EFFECT
COSMIC GAMMA BURSTS
COSMIC RADIATION
COSMIC RAY SOURCES
COSMIC X-RAY SOURCES
ELASTIC SCATTERING
ELECTROMAGNETIC INTERACTIONS
ELECTROMAGNETIC RADIATION
ELEMENTARY PARTICLES
INTERACTIONS
IONIZING RADIATIONS
MASSLESS PARTICLES
MATHEMATICAL MODELS
MOTION
PHOTONS
PLASMA
PRIMARY COSMIC RADIATION
RADIATIONS
ROTATION
SCATTERING
STAR ACCRETION
STAR EVOLUTION
STAR MODELS
STEADY-STATE CONDITIONS
X RADIATION