The X-Ray Light Curve in GRB 170714A: Evidence for a Quark Star?
文献类型:期刊论文
作者 | Hou, Shu-Jin1,2,3; Liu, Tong4; Xu, Ren-Xin5; Mu, Hui-Jun4; Song, Cui-Ying4; Lin, Da-Bin3; Gu, Wei-Min4 |
刊名 | ASTROPHYSICAL JOURNAL |
出版日期 | 2018-02-20 |
卷号 | 854期号:2 |
ISSN号 | 0004-637X |
关键词 | Dense Matter Gamma-ray Burst: Individual (Grb 170714a) Magnetic Fields Star: Neutron |
DOI | 10.3847/1538-4357/aaabba |
文献子类 | Article |
英文摘要 | Two plateaus and a following bump in the X-ray light curve of GRB 170714A have been detected by the Swift/X-ray Telescope, which could be very significant for the central engine of gamma-ray bursts (GRBs), implying that the origin of this burst might be different from those of other ultra-long GRBs. We propose that merging two neutron stars into a hyper-massive quark star (QS) and then collapsing into a black hole (BH), with a delay time around 10(4) s, could be responsible for these X-ray components. The hyper-massive QS is initially in a fluid state, being turbulent and differentially rotating, but would solidify and release its latent heat, injecting it into the GRB fireball (lasting about 103 s during the liquid-solid phase transition). A magnetic field as high as similar to 10(15) G can be created by dynamo action of the newborn liquid QS, and a magnetar-like central engine (after solidification) supplies significant energy for the second plateau. More energy could be released during a fall-back accretion after the post-merger QS collapses to a BH, and the X-ray bump forms. This post-merger QS model could be tested by future observations, with either advanced gravitational wave detectors (e.g., advanced LIGO and VIRGO) or X-ray/optical telescopes. |
学科主题 | 天文学 ; 天体物理学 ; 高能天体物理学 |
URL标识 | 查看原文 |
出版地 | TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND |
WOS关键词 | BLANDFORD-ZNAJEK PROCESS ; MILLISECOND MAGNETAR ; ENERGY INJECTION ; CENTRAL ENGINE ; NEUTRON-STAR ; BURST AFTERGLOW ; LONG ; EMISSION ; GRB-060614 ; SIGNATURE |
资助项目 | National Basic Research Program of China (973 Program)[2014CB845800] ; National Natural Science Foundation of China[11503011] ; National Natural Science Foundation of China[11473022] ; National Natural Science Foundation of China[11573023] ; National Natural Science Foundation of China[11673002] ; National Natural Science Foundation of China[11773007] ; National Natural Science Foundation of China[U1531243] ; Fundamental Research Funds for the Central Universities[20720160024] ; CAS Open Research Program of Key Laboratory for the Structure and Evolution of Celestial Objects[OP201403] ; Key Scientific Research Project in Universities of Henan Province[15A160001] ; Doctoral Foundation of Nanyang Normal University |
WOS研究方向 | Astronomy & Astrophysics |
语种 | 英语 |
出版者 | IOP PUBLISHING LTD |
WOS记录号 | WOS:000425389700002 |
资助机构 | National Basic Research Program of China (973 Program)[2014CB845800] ; National Natural Science Foundation of China[11503011, 11473022, 11573023, 11673002, 11773007, U1531243] ; Fundamental Research Funds for the Central Universities[20720160024] ; CAS Open Research Program of Key Laboratory for the Structure and Evolution of Celestial Objects[OP201403] ; Key Scientific Research Project in Universities of Henan Province[15A160001] ; Doctoral Foundation of Nanyang Normal University |
源URL | [http://ir.ynao.ac.cn/handle/114a53/12293] |
专题 | 云南天文台_中国科学院天体结构与演化重点实验室 |
通讯作者 | Liu, Tong |
作者单位 | 1.College of Physics and Electronic Engineering, Nanyang Normal University, Nanyang, Henan 473061, People's Republic of China 2.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming, Yunnan 650011, People's Republic of China 3.Laboratory for Relativistic Astrophysics, Department of Physics, Guangxi University, Nanning, Guangxi 530004, People's Republic of China 4.Department of Astronomy, Xiamen University, Xiamen, Fujian 361005, People's Republic of China 5.School of Physics, Peking University, Beijing 100871, People's Republic of China |
推荐引用方式 GB/T 7714 | Hou, Shu-Jin,Liu, Tong,Xu, Ren-Xin,et al. The X-Ray Light Curve in GRB 170714A: Evidence for a Quark Star?[J]. ASTROPHYSICAL JOURNAL,2018,854(2). |
APA | Hou, Shu-Jin.,Liu, Tong.,Xu, Ren-Xin.,Mu, Hui-Jun.,Song, Cui-Ying.,...&Gu, Wei-Min.(2018).The X-Ray Light Curve in GRB 170714A: Evidence for a Quark Star?.ASTROPHYSICAL JOURNAL,854(2). |
MLA | Hou, Shu-Jin,et al."The X-Ray Light Curve in GRB 170714A: Evidence for a Quark Star?".ASTROPHYSICAL JOURNAL 854.2(2018). |
入库方式: OAI收割
来源:云南天文台
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