Cosmic gamma-ray bursts from black hole tidal disruption of stars?

Statistics – Computation

Scientific paper

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Black Holes (Astronomy), Galactic Nuclei, Gamma Ray Bursts, Stellar Evolution, Computational Astrophysics, Stellar Envelopes

Scientific paper

Prior to its ultimate tidal disruption, any star plunging sufficiently deeply within the Roche radius of a giant black hole in a galactic nucleus will briefly undergo compression into highly flattened pancake configuration in the plane of its orbit. If it is assumed (as a provisional hypothesis) that a substantial part of the thermal energy briefly made available by this process is dissipated as electromagnetic radiation, one finds that the most energetic cases would give rise to cosmic gamma-ray bursts whose total energy and duration are remarkably consistent with what is actually observed.

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