NASA NTRS · 19790015683
Gamma rays from accretion onto rotating black holes
Abstract
Ionized matter falling onto an isolated, rotating black hole will be heated sufficiently that proton-proton collisions will produce mesons, including neutral pions, which decay into gamma rays. For massive (1000 M sub circled dot), black holes, the resulting gamma-ray luminosity may exceed 10 to the 36th power engs/s, with a spectrum peaked near 20 MeV.
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Collins, M. S.. 1978-09-01. Gamma rays from accretion onto rotating black holes. https://ntrs.nasa.gov/citations/19790015683
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