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Central-engine-powered Bright X-Ray Flares in Short Gamma-Ray Bursts: A Hint of a Black Hole-Neutron Star Merger?
Mu, Hui-Jun1; Gu, Wei-Min1,2; Mao JR(毛基荣)3,4,5; Hou, Shu-Jin6; Lin, Da-Bin7; Liu, Tong1
发表期刊ASTROPHYSICAL JOURNAL
2018-05-01
卷号858期号:1
DOI10.3847/1538-4357/aaba14
产权排序第3完成单位
收录类别SCI
关键词Accretion, Accretion Disks Gamma-ray Burst: General X-rays: General
摘要

Short gamma-ray bursts may originate from the merger of a double neutron star (NS) or the merger of a black hole (BH) and an NS. We propose that the bright X-ray flare related to the central engine reactivity may indicate a BH-NS merger, since such a merger can provide more fallback materials and therefore a more massive accretion disk than the NS-NS merger. Based on the 49 observed short bursts with the Swift/X-ray Telescope follow-up observations, we find that three bursts have bright X-ray flares, among which three flares from two bursts are probably related to the central engine reactivity. We argue that these two bursts may originate from the BH-NS merger rather than the NS-NS merger. Our suggested link between the central-engine-powered bright X-ray flare and the BH-NS merger event can be checked by future gravitational wave detections from advanced LIGO and Virgo.

资助项目National Basic Research Program of China (973 Program)[2014CB845800] ; National Natural Science Foundation of China[11573023] ; National Natural Science Foundation of China[11673062] ; National Natural Science Foundation of China[11473022] ; National Natural Science Foundation of China[11333004] ; National Natural Science Foundation of China[11503011] ; National Natural Science Foundation of China[11773007] ; National Natural Science Foundation of China[11403005] ; CAS Open Research Program of Key Laboratory for the Structure and Evolution of Celestial Objects[OP201503] ; Hundred Talent Program ; Major Program of the Chinese Academy of Sciences[KJZD-EW-M06] ; Oversea Talent Program of Yunnan Province
项目资助者National Basic Research Program of China (973 Program)[2014CB845800] ; National Natural Science Foundation of China[11573023, 11673062, 11473022, 11333004, 11503011, 11773007, 11403005] ; CAS Open Research Program of Key Laboratory for the Structure and Evolution of Celestial Objects[OP201503] ; Hundred Talent Program ; Major Program of the Chinese Academy of Sciences[KJZD-EW-M06] ; Oversea Talent Program of Yunnan Province
语种英语
学科领域天文学 ; 天体物理学 ; 高能天体物理学
学科门类理学 ; 理学::天文学
文章类型Article
出版者IOP PUBLISHING LTD
出版地TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
ISSN0004-637X
URL查看原文
WOS记录号WOS:000431458900005
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]Blandford-znajek Process ; Millisecond Pulsars ; Dominated Accretion ; Energy Injection ; Afterglow ; Origin ; Evolution ; Long ; Simulations ; Models
引用统计
文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/12359
专题丽江天文观测站(南方基地)
中国科学院天体结构与演化重点实验室
通讯作者Gu, Wei-Min
作者单位1.Department of Astronomy, Xiamen University, Xiamen, Fujian 361005, People's Republic of China
2.Jiujiang Research Institute of Xiamen University, Jiujiang 332000, People's Republic of China
3.Yunnan Observatories, Chinese Academy of Sciences, 650011 Kunming, Yunnan Province, People's Republic of China
4.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, 650011 Kunming, People's Republic of China
5.Chinese Acad Sci, Key Lab Struct & Evolut Celestial Objects, Kunming 650011, Yunnan, Peoples R China
6.College of Physics and Electronic Engineering, Nanyang Normal University, Nanyang, Henan 473061, People's Republic of China
7.Guangxi Key Laboratory for Relativistic Astrophysics, Department of Physics, Guangxi University, Nanning 530004, People's Republic of China
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Mu, Hui-Jun,Gu, Wei-Min,Mao JR,et al. Central-engine-powered Bright X-Ray Flares in Short Gamma-Ray Bursts: A Hint of a Black Hole-Neutron Star Merger?[J]. ASTROPHYSICAL JOURNAL,2018,858(1).
APA Mu, Hui-Jun,Gu, Wei-Min,Mao JR,Hou, Shu-Jin,Lin, Da-Bin,&Liu, Tong.(2018).Central-engine-powered Bright X-Ray Flares in Short Gamma-Ray Bursts: A Hint of a Black Hole-Neutron Star Merger?.ASTROPHYSICAL JOURNAL,858(1).
MLA Mu, Hui-Jun,et al."Central-engine-powered Bright X-Ray Flares in Short Gamma-Ray Bursts: A Hint of a Black Hole-Neutron Star Merger?".ASTROPHYSICAL JOURNAL 858.1(2018).
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