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A magnetically driven origin for the low luminosity GRB 170817A associated with GW170817
Tong Hao1; Yu Cong2; Huang Lei3
2018
Source PublicationRESEARCH IN ASTRONOMY AND ASTROPHYSICS
ISSN1674-4527
Volume18Issue:6
AbstractThe gamma-ray burst GR170817A associated with GW170817 is subluminous and subenergetic compared with other typical short gamma-ray bursts. It may be due to a relativistic jet viewed off-axis, or a structured jet or cocoon emission. Giant flares from magnetars may possibly be ruled out. However, the luminosity and energetics of GRB 170817A are coincident with those of magnetar giant flares. After the coalescence of a binary neutron star, a hypermassive neutron star may be formed. The hypermassive neutron star may have a magnetar-strength magnetic field. During the collapse of this hypermaassive neutron star, magnetic field energy will also be released. This giant-flare-like event may explain the luminosity and energetics of GRB 170817A. Bursts with similar luminosity and energetics are expected in future neutron star-neutron star or neutron star-black hole mergers.
KeywordGAMMA-RAY BURSTS MAGNETIZED NEUTRON-STARS GIANT FLARES ENERGY SGR-1806-20 SCATTERING REPEATERS MECHANISM COMPTON PULSARS stars: magnetar stars: neutron gamma-ray bursts: individual (GRB 170817A) gravitational waves
Language英语
Funding Project[National Natural Science Foundation of China (NSFC)] ; [NSFC] ; [Yunnan Natural Science Foundation] ; [Key Research Program of Frontier Sciences, CAS]
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/61704
Collection中国科学院国家天文台
Affiliation1.广州大学
2.Sun Yat Sen University, Sch Phys & Astron, Zhuhai 519082, Peoples R China
3.中国科学院国家天文台
Recommended Citation
GB/T 7714
Tong Hao,Yu Cong,Huang Lei. A magnetically driven origin for the low luminosity GRB 170817A associated with GW170817[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2018,18(6).
APA Tong Hao,Yu Cong,&Huang Lei.(2018).A magnetically driven origin for the low luminosity GRB 170817A associated with GW170817.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,18(6).
MLA Tong Hao,et al."A magnetically driven origin for the low luminosity GRB 170817A associated with GW170817".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 18.6(2018).
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