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SWIFT J164449.3+573451: A PLUNGING EVENT WITH A POYNTING-FLUX-DOMINATED OUTFLOW
Gao, Wei-Hong1,2,3; Gao,WH
2012-12-20
Source PublicationASTROPHYSICAL JOURNAL
ISSN0004-637X
Volume761Issue:2
AbstractSwift J164449+573451 is a peculiar outburst which is most likely powered by the tidal disruption of a star by a massive black hole. Within the tidal disruption scenario, we show that the periastron distance is considerably smaller than the disruption radius and the outflow should be launched mainly via magnetic activities ( e. g., the Blandford-Znajek process), otherwise the observed long-lasting X-ray afterglow emission satisfying the relation L-X alpha (M) over dot cannot be reproduced, where L-X is the X-ray luminosity and (M) over dot is the accretion rate. We also suggest that L-X alpha (M) over dot may hold in the quick decline phase of gamma-ray bursts.
KeywordAccretion, Accretion Disks Black Hole Physics Gamma-ray Burst: General Radiation Mechanisms: Non-thermal
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1088/0004-637X/761/2/113
WOS KeywordGAMMA-RAY BURSTS ; ACCRETING BLACK-HOLES ; TIDAL DISRUPTION ; NEARBY GALAXIES ; STAR ; MODEL ; RADIATION ; EMISSION ; FLARES ; OUTBURST
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000312090300032
Citation statistics
Cited Times:6[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/10096
Collection期刊(老文献)
Corresponding AuthorGao,WH
Affiliation1.Nanjing Normal Univ, Dept Phys, Nanjing 210046, Jiangsu, Peoples R China
2.Nanjing Normal Univ, Inst Theoret Phys, Nanjing 210046, Jiangsu, Peoples R China
3.Chinese Acad Sci, Key Lab Dark Matter & Space Astron, Nanjing 210008, Jiangsu, Peoples R China
Recommended Citation
GB/T 7714
Gao, Wei-Hong,Gao,WH. SWIFT J164449.3+573451: A PLUNGING EVENT WITH A POYNTING-FLUX-DOMINATED OUTFLOW[J]. ASTROPHYSICAL JOURNAL,2012,761(2).
APA Gao, Wei-Hong,&Gao,WH.(2012).SWIFT J164449.3+573451: A PLUNGING EVENT WITH A POYNTING-FLUX-DOMINATED OUTFLOW.ASTROPHYSICAL JOURNAL,761(2).
MLA Gao, Wei-Hong,et al."SWIFT J164449.3+573451: A PLUNGING EVENT WITH A POYNTING-FLUX-DOMINATED OUTFLOW".ASTROPHYSICAL JOURNAL 761.2(2012).
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