Accretion onto massive black holes - Effects of e/-/-e/+/ pairs

Details Accretion onto massive black holes - Effects of e/-/-e/+/ pairs Accretion onto massive black holes - Effects of e/-/-e/+/ pairs

Feb 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981apj...244l...7y&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor, vol. 244, Feb. 15, 1981, p. L7-L11.

Physics

Nuclear Physics

15

Black Holes (Astronomy), Cosmic Plasma, Electron-Positron Pairs, Gamma Rays, Hydrodynamics, Nuclei (Nuclear Physics), Stellar Mass Accretion, Hydrodynamic Equations, Radiation Spectra, X Ray Spectra

Scientific paper

The spherical accretion of matter onto a massive static black hole is considered. The stationary hydrodynamic equations are solved, and the emergent radiation spectra are obtained. The density of e(-)-e(+) pairs is calculated, and these pairs are discussed with reference to the observed spectral shape and the total luminosity. It is shown that, because of the gamma-gamma reactions, the spectrum decreases with a steep slope (less than 3) above an energy of about 1 MeV.

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