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

作者：Wang Hao; Liu Tong; Lu JuFu^*

来源：Science in China - Series G: Physics Mechanics and Astronomy , 2009, 52(5): 729-733.

DOI：10.1007/s11433-009-0089-y

• accretion disks
• black hole physics
• gamma-rays: bursts
• neutrinos

We discuss how the annihilation luminosity of a neutrino-cooled accretion disk in a gamma-ray burst, L((w) over bar) is determined by the disk's fundamental parameters, namely, the mass of the central black hole M, the mass accretion rate M, and the viscosity parameter alpha. It is shown that L((W) over bar) depends mainly on M in evidence, and decreases with increasing M, but is almost independent of alpha. This result argues additionally that the central black hole in a gamma-ray burst must be with a stellar mass.

• 出版日期2009-5
• 单位厦门大学