Liu 2007 NDAF as central engine for X-ray flares

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文章信息:
Constraints on the Mass Accretion Rate of Neutrino-Cooled Disks in Gamma-Ray Bursts

Authors: Tong Liu, Wei-Min Gu, Li Xue, Shan-Shan Weng, Ju-Fu Lu

(Submitted on 26 Dec 2007)

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.

Comments:	13 pages, 3 figures, accepted by ApJ
Subjects:	Astrophysics (astro-ph)
Cite as:	arXiv:0712.4107v1 [astro-ph]