Can soft gamma-ray bursts be emitted by accreting black holes

Details Can soft gamma-ray bursts be emitted by accreting black holes Can soft gamma-ray bursts be emitted by accreting black holes

Jul 1975

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975natur.256..112p&link_type=abstract

Nature, vol. 256, July 10, 1975, p. 112, 113.

Astronomy and Astrophysics

Astronomy

6

Black Holes (Astronomy), Compton Effect, Gamma Rays, Stellar Radiation, X Ray Astronomy, Astronomical Models, Binary Stars, Gravitational Collapse, Stellar Evolution, Stellar Rotation

Scientific paper

A possible model for the observed gamma-ray bursts is discussed. It is suggested that the gamma-rays are produced by inverse Compton processes occurring deep in the ergosphere of a fast rotating, accreting, black hole. At the time of burst, plasma, which has an optical depth of the order of the relevant gravitational distances, emerges near the horizon due to an instability, and free falling photons, which are produced by viscous process in an accretion disk further away, are being scattered off it. The black hole is probably a member of a binary system and, depending on its steady-state accretion rate, may or may not be observable as an X-ray source.

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