The relativistic spherical accretion by black holes

Details The relativistic spherical accretion by black holes The relativistic spherical accretion by black holes

Jul 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985ap%26ss.113....1v&link_type=abstract

Astrophysics and Space Science (ISSN 0004-640X), vol. 113, no. 1, July 1985, p. 1-24.

Statistics

Computation

4

Black Holes (Astronomy), Computational Astrophysics, Relativistic Velocity, Stellar Mass Accretion, Absorption Spectra, Asymptotic Methods, Electron Energy, Electron-Positron Pairs, Energy Dissipation, Gamma Rays, Hydrodynamic Equations, Ion Temperature, Magnetic Fields, Pair Production, Schwarzschild Metric, Viscosity

Scientific paper

The relativistic spherical accretion onto 'black holes' is considered. It is shown that electron heat conductivity and ion viscosity increase the ion temperature by roughly two orders of magnitude over the electron temperature at Schwarzschild radius. As a result, the 'knee' arises in the gamma-radiation spectrum at 10-30 MeV. The role of magnetic field, electron-positron pair production and generation of absorption lines in the spectrum is briefly discussed.

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