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JET LUMINOSITY OF GAMMA-RAY BURSTS: THE BLANDFORD-ZNAJEK MECHANISM VERSUS THE NEUTRINO ANNIHILATION PROCESS
Liu, Tong1,2,3,4; Hou, Shu-Jin2,5; Xue, Li1,4; Gu, Wei-Min1,4
Source PublicationASTROPHYSICAL JOURNAL SUPPLEMENT SERIES
2015-05
Volume218Issue:1
DOI10.1088/0067-0049/218/1/12
Indexed BySCI
Keywordaccretion, accretion disks black hole physics gamma-ray burst: general neutrinos
Abstract

A neutrino-dominated accretion flow (NDAF) around a rotating stellar-mass black hole (BH) is one of the plausible candidates for the central engine of gamma-ray bursts (GRBs). Two mechanisms, i.e., the Blandford-Znajek (BZ) mechanism and the neutrino annihilation process, are generally considered to power GRBs. Using the analytic solutions from Xue et al. and ignoring the effects of the magnetic field configuration, we estimate the BZ and neutrino annihilation luminosities as functions of the disk masses and BH spin parameters to contrast the observational jet luminosities of GRBs. Our results show that although the neutrino annihilation processes could account for most GRBs, the BZ mechanism is more effective, especially for long-duration GRBs. Actually, if the energy of the afterglows and flares of GRBs is included, then the distinction between these two mechanisms is more significant. Furthermore, massive disk mass and high BH spin are beneficial for powering the high luminosities of GRBs. Finally, we discuss possible physical mechanisms that could enhance the disk mass or neutrino emission rate of NDAFs and the relevant difference between these two mechanisms.

Funding ProjectNational Basic Research Program of China (973 Program)[2014CB845800] ; National Natural Science Foundation of China[11222328] ; National Natural Science Foundation of China[11233006] ; National Natural Science Foundation of China[11333004] ; National Natural Science Foundation of China[11373002] ; National Natural Science Foundation of China[11473022] ; National Natural Science Foundation of China[U1331101] ; CAS Open Research Program of Key Laboratory for the Structure and Evolution of Celestial Objects[OP201305] ; CAS Open Research Program of Key Laboratory for the Structure and Evolution of Celestial Objects[OP201403]
Funding OrganizationNational Basic Research Program of China (973 Program)[2014CB845800] ; National Natural Science Foundation of China[11222328, 11233006, 11333004, 11373002, 11473022, U1331101] ; CAS Open Research Program of Key Laboratory for the Structure and Evolution of Celestial Objects[OP201305, OP201403]
Language英语
Subject Area天文学 ; 天体物理学 ; 高能天体物理学
MOST Discipline Catalogue理学 ; 理学::天文学
SubtypeArticle
PublisherIOP PUBLISHING LTD
Publication PlaceTEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
ISSN0067-0049
URL查看原文
WOS IDWOS:000354999200012
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordCOOLED ACCRETION DISKS ; BLACK-HOLE ACCRETION ; DOMINATED ACCRETION ; CENTRAL ENGINE ; GRAVITATIONAL-WAVES ; VERTICAL STRUCTURE ; RELATIVISTIC JETS ; STARS ; FLARES ; PRECESSION
Citation statistics
Cited Times:30[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/9371
Collection中国科学院天体结构与演化重点实验室
Corresponding AuthorLiu, Tong
Affiliation1.Department of Astronomy and Institute of Theoretical Physics and Astrophysics, Xiamen University, Xiamen, Fujian 361005, China
2.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming, Yunnan 650011, China
3.State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing 100190, China
4.SHAO-XMU Joint Center for Astrophysics, Xiamen University, Xiamen, Fujian 361005, China
5.College of Physics and Electronic Engineering, Nanyang Normal University, Nanyang, Henan 473061, China
Recommended Citation
GB/T 7714
Liu, Tong,Hou, Shu-Jin,Xue, Li,et al. JET LUMINOSITY OF GAMMA-RAY BURSTS: THE BLANDFORD-ZNAJEK MECHANISM VERSUS THE NEUTRINO ANNIHILATION PROCESS[J]. ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES,2015,218(1).
APA Liu, Tong,Hou, Shu-Jin,Xue, Li,&Gu, Wei-Min.(2015).JET LUMINOSITY OF GAMMA-RAY BURSTS: THE BLANDFORD-ZNAJEK MECHANISM VERSUS THE NEUTRINO ANNIHILATION PROCESS.ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES,218(1).
MLA Liu, Tong,et al."JET LUMINOSITY OF GAMMA-RAY BURSTS: THE BLANDFORD-ZNAJEK MECHANISM VERSUS THE NEUTRINO ANNIHILATION PROCESS".ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES 218.1(2015).
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