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题名: CAN BLACK HOLE NEUTRINO-COOLED DISKS POWER SHORT GAMMA-RAY BURSTS?
作者: Liu, T;  Lin, YQ;  Hou, SJ;  Gu, WM
刊名: ASTROPHYSICAL JOURNAL
出版日期: 2015
卷号: 806, 期号:1, 页码:58
关键词: accretion, accretion disks ;  black hole physics ;  gamma-ray burst: general ;  neutrinos
学科分类: Astronomy & Astrophysics
DOI: http://dx.doi.org/10.1088/0004-637X/806/1/58
通讯作者: Liu, T (reprint author), Xiamen Univ, Dept Astron, Xiamen 361005, Fujian, Peoples R China.
文章类型: Article
英文摘要: Stellar-mass black holes (BHs) surrounded by neutrino-dominated accretion flows (NDAFs) are plausible sources of power. for. gamma-ray bursts (GRBs) via neutrino. emission and their annihilation. The progenitors of short-duration GRBs (SGRBs) are generally considered to be compact binary. mergers. According to the simulation results, the disk mass of the NDAF is limited after merger events. We can estimate such disk masses. using the current SGRB observational data and fireball model. The results show that the disk mass of a certain SGRB mainly depends on its output energy, jet opening angle, and central BH characteristics. Even for the extreme BH parameters, some SGRBs require massive disks, which approach or exceed the limits in simulations. We suggest that there may exist alternative MHD processes or mechanisms that increase the neutrino emission to produce SGRBs with reasonable BH parameters and disk masses.
类目[WOS]: Astronomy & Astrophysics
关键词[WOS]: DOMINATED ACCRETION DISKS ;  BLANDFORD-ZNAJEK PROCESS ;  ENERGY DEPOSITION RATE ;  CENTRAL ENGINE ;  PAIR ANNIHILATION ;  VERTICAL STRUCTURE ;  MAGNETIC-FIELDS ;  EARLY AFTERGLOW ;  QUARK STARS ;  JET BREAK
收录类别: SCI
项目资助者: National Basic Research Program of China (973 Program) [2014CB845800] ;  National Natural Science Foundation of China [11222328, 11233006, 11333004, 11373002, 11473022, U1231101, U1331101] ;  CAS Open Research Program of Key Laboratory for the Structure and Evolution of Celestial Objects [OP201305, OP201403]
语种: 英语
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/20971
Appears in Collections:理论物理所2015年知识产出_期刊论文

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Recommended Citation:
Liu, T,Lin, YQ,Hou, SJ,et al. CAN BLACK HOLE NEUTRINO-COOLED DISKS POWER SHORT GAMMA-RAY BURSTS?[J]. ASTROPHYSICAL JOURNAL,2015,806(1):58.
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