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Making a short gamma-ray burst from a long one: Implications for the nature of GRB 060614
Zhang, B1; Zhang BB(张彬彬)1,2,3; Liang, EW1,4; Gehrels, N5; Burrows, DN6; Meszaros, P6,7; Zhang, B (reprint author), Univ Nevada, Dept Phys & Astron, Las Vegas, NV 89154 USA.
发表期刊ASTROPHYSICAL JOURNAL
2007-01-20
卷号655期号:1页码:L25-L28
DOI10.1086/511781
产权排序第2完成单位
收录类别SCI
关键词Gamma Rays : Bursts
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.
语种英语
学科领域Astronomy & Astrophysics
文章类型Article
ISSN0004-637X
URL查看原文
WOS记录号WOS:000243725500007
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]HOST GALAXY ; AFTERGLOW ; SUPERNOVA ; MODELS ; GRB-050709 ; EMISSION ; FLARES ; ORIGIN ; SPECTROSCOPY ; TELESCOPE
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被引频次:138[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ynao.ac.cn/handle/114a53/7028
专题星系研究组
通讯作者Zhang, B (reprint author), Univ Nevada, Dept Phys & Astron, Las Vegas, NV 89154 USA.
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
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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.,...&Zhang, B .(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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