Gamma ray sources - Black holes?

Astronomy and Astrophysics – Astronomy

Scientific paper

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Black Holes (Astronomy), Gamma Ray Spectra, Cos-B Satellite, Emissivity, Luminosity, Mass Flow, Sas-2

Scientific paper

The authors determined the γ-ray production spectrum in the comoving plasma system for different temperatures and expected γ-ray spectrum for the case of spherically symmetric accretion of matter onto a black hole. The luminosity and emissivity of a typical black hole of 10 M_sun; and mass accretion rate of 10-8M_sun;/y were also determined. The predictions of the model gauged to 3C 273 are presented. A mass accretion rate M≥ 400 M_sun;/y needs to fit the model with the experimental data for a total mass of the black hole M ≥ 2.5×5×109M_sun;.

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