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Variability of the giant X-ray bump in GRB 121027A and its possible origin
Hou, Shu-Jin1,2,3; Gao, He4; Liu, Tong1,3,5; Gu, Wei-Min1; Lin, Da-Bin6; Li, Ya-Ping1; Men, Yun-Peng7; Wu, Xue-Feng2; Lei, Wei-Hua7; Lu, Ju-Fu1
Source PublicationMONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
2014-07-01
Volume441Issue:3Pages:2375-2379
DOI10.1093/mnras/stu682
Indexed BySCI
Keywordaccretion, accretion discs black hole physics gamma-ray burst: individual: GRB 121027A
Abstract

The giant X-ray bump of GRB 121027A observed by Swift is different from the typical X-ray flares in gamma-ray bursts. The observed structural variability in the rise and decay phases of the bump has four components. Of these four components, only the data in the bump from about 5300 to about 6100 s is of good enough quality to be analysed using the stepwise filter correlation method. A 86(-9.4)(+5.9)s periodic oscillation is postulated, which is confirmed by the Lomb-Scargle method. A jet precession model is proposed to account for this variability.

Funding ProjectNational Basic Research Program of China (973 Program)[2014CB845800] ; National Natural Science Foundation of China[11103015] ; National Natural Science Foundation of China[11163003] ; 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[U1331101] ; CAS Open Research Program of Key Laboratory for the Structure and Evolution of Celestial Objects[OP201305] ; Natural Science Foundation of Fujian Province of China[2012J01026] ; One-Hundred-Talents Program ; Youth Innovation Promotion Association ; Strategic Priority Research Program 'The Emergence of Cosmological Structures' of the Chinese Academy of Sciences[XDB09000000]
Funding OrganizationNational Basic Research Program of China (973 Program)[2014CB845800] ; National Natural Science Foundation of China[11103015, 11163003, 11222328, 11233006, 11333004, 11373002, U1331101] ; CAS Open Research Program of Key Laboratory for the Structure and Evolution of Celestial Objects[OP201305] ; Natural Science Foundation of Fujian Province of China[2012J01026] ; One-Hundred-Talents Program ; Youth Innovation Promotion Association ; Strategic Priority Research Program 'The Emergence of Cosmological Structures' of the Chinese Academy of Sciences[XDB09000000]
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
PublisherOXFORD UNIV PRESS
Publication PlaceGREAT CLARENDON ST, OXFORD OX2 6DP, ENGLAND
ISSN0035-8711
URL查看原文
WOS IDWOS:000338763600044
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordDOMINATED ACCRETION DISKS ; KERR BLACK-HOLES ; JET PRECESSION ; LIGHT CURVES ; VERTICAL STRUCTURE ; BURSTS ; FLARES ; EVOLUTION ; PROMPT ; MODELS
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/9434
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.Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing, Jiangsu 210008, China
3.Key Laboratory for the Structure and Evolution of Celestial Objects, Chinese Academy of Sciences, Kunming, Yunnan 650011, China
4.Department of Physics and Astronomy, University of Nevada Las Vegas, 4505 Maryland Parkway, Box 454002, Las Vegas, NV 89154-4002, USA
5.State Key Laboratory of Theoretical Physics, Institute of Theoretical Physics, Chinese Academy of Sciences, Beijing, 100190, China
6.Department of Physics and GXU-NAOC Center for Astrophysics and Space Sciences, Guangxi University, Nanning, Guangxi 530004, China
7.School of Physics, Huazhong University of Science and Technology, Wuhan, Hubei 430074, China
Recommended Citation
GB/T 7714
Hou, Shu-Jin,Gao, He,Liu, Tong,et al. Variability of the giant X-ray bump in GRB 121027A and its possible origin[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2014,441(3):2375-2379.
APA Hou, Shu-Jin.,Gao, He.,Liu, Tong.,Gu, Wei-Min.,Lin, Da-Bin.,...&Lu, Ju-Fu.(2014).Variability of the giant X-ray bump in GRB 121027A and its possible origin.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,441(3),2375-2379.
MLA Hou, Shu-Jin,et al."Variability of the giant X-ray bump in GRB 121027A and its possible origin".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 441.3(2014):2375-2379.
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