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Making a short gamma-ray burst from a long one: Implications for the nature of GRB 060614

文献类型:期刊论文

作者Zhang, B1; Zhang BB(张彬彬)1,2,3; Liang, EW1,4; Gehrels, N5; Burrows, DN6; Meszaros, P6,7
刊名ASTROPHYSICAL JOURNAL
出版日期2007-01-20
卷号655期号:1页码:L25-L28
关键词gamma rays : bursts
ISSN号0004-637X
产权排序第二完成单位
通讯作者Zhang, B (reprint author), Univ Nevada, Dept Phys & Astron, Las Vegas, NV 89154 USA.
英文摘要The absence of a supernova accompanying the nearby long GRB 060614 poses a great puzzle about the progenitor of this event and challenges the current GRB classification scheme. This burst displays a short-hard emission episode followed by extended soft emission with strong spectral evolution. Noticing that this burst has an isotropic gamma-ray energy only similar to 8 times that of GRB 050724, a good candidate of merger-type short GRBs, we generate a "pseudo" burst that is similar to 8 times less energetic than GRB 060614 based on the spectral properties of GRB 060614 and the E(p) proportional to E(iso)(1/2) (Amati) relation. We find that this pseudoburst would have been detected by BATSE as a marginal short-duration GRB and would have properties in the Swift BAT and XRT bands similar to GRB 050724. This suggests that GRB 060614 is likely a more intense event in the traditional short-hard GRB category. Events like GRB 060614 that seem to defy the traditional short versus long classification of GRBs may require modification of our classification terminology for GRBs. By analogy with supernova classifications, we suggest that GRBs be classified into Type I ( typically short and associated with old populations) and Type II ( typically long and associated with young populations). We propose that GRB 060614 belongs to Type I and predict that similar events will be detected in elliptical galaxies.
WOS标题词Science & Technology ; Physical Sciences
学科主题Astronomy & Astrophysics
类目[WOS]Astronomy & Astrophysics
研究领域[WOS]Astronomy & Astrophysics
关键词[WOS]HOST GALAXY ; AFTERGLOW ; SUPERNOVA ; MODELS ; GRB-050709 ; EMISSION ; FLARES ; ORIGIN ; SPECTROSCOPY ; TELESCOPE
收录类别SCI
原文出处http://iopscience.iop.org/1538-4357/655/1/L25/
语种英语
WOS记录号WOS:000243725500007
公开日期2016-05-03
源URL[http://ir.ynao.ac.cn/handle/114a53/7028]  
专题云南天文台_星系研究组
作者单位1.Department of Physics and Astronomy, University of Nevada, Las Vegas, NV
2.National Astronomical Observatories/Yunnan Observatory, CAS, Kunming, China
3.Graduate School of the Chinese Academy of Sciences, Beijing, China
4.Department of Physics, Guangxi University, Nanning, China
5.NASA Goddard Space Flight Center, Greenbelt, MD
6.Department of Astronomy and Astrophysics, Pennsylvania State University, University Park, PA
7.Department of Physics, Pennsylvania State University, University Park, PA
推荐引用方式
GB/T 7714
Zhang, B,Zhang BB,Liang, EW,et al. Making a short gamma-ray burst from a long one: Implications for the nature of GRB 060614[J]. ASTROPHYSICAL JOURNAL,2007,655(1):L25-L28.
APA Zhang, B,Zhang BB,Liang, EW,Gehrels, N,Burrows, DN,&Meszaros, P.(2007).Making a short gamma-ray burst from a long one: Implications for the nature of GRB 060614.ASTROPHYSICAL JOURNAL,655(1),L25-L28.
MLA Zhang, B,et al."Making a short gamma-ray burst from a long one: Implications for the nature of GRB 060614".ASTROPHYSICAL JOURNAL 655.1(2007):L25-L28.

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来源:云南天文台

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