Constraints on the Mass Accretion Rate of Neutrino-Cooled Disks in Gamma-Ray Bursts
arXiv:0712.4107 · doi:10.1086/527670
Abstract
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.
13 pages, 3 figures, accepted by ApJ
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- Can black-hole neutrino-cooled disks power short gamma-ray bursts?
- Gravitational radiation from precessing accretion disks in gamma-ray bursts
- Self-gravity in neutrino-dominated accretion disks
- Statistical analyses on the energies of X-ray plateaus and flares in gamma-ray bursts
- Central Engine of Late-Time X-ray Flares with Internal Origin
- Comparison of gravitational waves from central engines of gamma-ray bursts: neutrino-dominated accretion flows, Blandford-Znajek mechanisms, and millisecond magnetars
- Variability of the giant X-ray bump in GRB 121027A and possible origin
- Vertical convection in neutrino-dominated accretion flows
- Relativistic global solutions of neutrino-dominated accretion flows with magnetic coupling