A Kerr-Newman black hole produced by a binary black hole merger, with a magnetized disk, can power a short gamma-ray burst via the Blandford-Znajek mechanism, and the model is applied to GW150914.
High Energy Emission from AGN and Unified Schemes
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abstract
Active Galactic Nuclei (AGN) are now known to be strong gamma-ray emitters. After briefly describing AGN classification and the main ideas behind unified schemes, I summarize the main properties of blazars (that is BL Lacs and flat-spectrum radio quasars) and their connection with relativistic beaming. Finally, I address the question of why blazars, despite being extreme and very rare objects, are the only AGN detected at high (E > 100 MeV) energies, and touch upon the relevance of TeV astronomy for AGN research.
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Short-duration gamma-ray bursts from Kerr-Newman black hole mergers
A Kerr-Newman black hole produced by a binary black hole merger, with a magnetized disk, can power a short gamma-ray burst via the Blandford-Znajek mechanism, and the model is applied to GW150914.