Constraints on the Mass Accretion Rate of Neutrino-Cooled Disks in Gamma-Ray Bursts

Details Constraints on the Mass Accretion Rate of Neutrino-Cooled Disks in Gamma-Ray Bursts Constraints on the Mass Accretion Rate of Neutrino-Cooled Disks in Gamma-Ray Bursts

2007-12-26

arxiv.org/abs/0712.4107v1

Astronomy and Astrophysics

Astrophysics

13 pages, 3 figures, accepted by ApJ

Scientific paper

10.1086/527670

We present a unified description of all the three known classes of optically thick accretion disks around black holes, namely Shakura-Sunyaev disks, slim disks, and neutrino-dominated accretion flows (NDAFs). It is found that NDAFs have both a maximal and a minimal possible mass accretion rate at their each radius. This may be suggestive of an interpretation for the origin of X-ray flares observed in gamma-ray bursts.

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