Annihilation luminosity of a neutrino-cooled accretion disk in a gamma-ray burst

Details Annihilation luminosity of a neutrino-cooled accretion disk in a gamma-ray burst Annihilation luminosity of a neutrino-cooled accretion disk in a gamma-ray burst

May 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009scchg..52..729w&link_type=abstract

Science in China Series G: Physics, Mechanics and Astronomy, Volume 52, Issue 5, pp.729-733

Physics

Accretion Disks, Black Hole Physics, Gamma-Rays: Bursts, Neutrinos

Scientific paper

We discuss how the annihilation luminosity of a neutrino-cooled accretion disk in a gamma-ray burst, L_{Vbar V} , is determined by the disk’s fundamental parameters, namely, the mass of the central black hole M, the mass accretion rate Ṁ, and the viscosity parameter α. It is shown that L_{Vbar V} depends mainly on Ṁ in evidence, and decreases with increasing M, but is almost independent of α. This result argues additionally that the central black hole in a gamma-ray burst must be with a stellar mass.

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