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Dependence of temporal properties on energy in long-lag, wide-pulse gamma-ray bursts
Zhang FW(张富文)1,4; Qin, YP2,3; Zhang BB(张彬彬)1,4,5; Zhang, FW (reprint author), Chinese Acad Sci, Yunnan Observ, Natl Astron Observ, POB 110, Kunming 650011, Yunnan, Peoples R China.
发表期刊PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN
2007
卷号59期号:4页码:857-867
产权排序第1完成单位
收录类别SCI
关键词Gamma Rays : Bursts Method : Statistical
摘要We employed a sample by Norris et al. (2005, ApJ, 625, 324) to study the dependence of the pulse temporal properties on energy in long-lag, wide-pulse gamma-ray bursts. Our analysis shows that the pulse peak time, rise time scale, and decay time scale are power-law functions of energy, which is a preliminary report on the relationships between the three quantities and energy. The power-law indexes associated with the pulse width, rise time scale, and decay time scale are correlated, and the correlation between the indexes associated with the pulse width and the decay time scale is more obvious. In addition, we have found that the pulse peak lag is strongly correlated with the CCF lag, but the centroid lag is less correlated with the peak lag and the CCF lag. Based on these results and some previous investigations, we tend to believe that all energy-dependent pulse temporal properties may come from the joint contribution of both the hydrodynamic processes of the outflows and the curvature effect, where the energy-dependent spectral lag may be mainly dominated by the dynamic process, and the energy-dependent pulse width may be mainly determined by the curvature effect.
语种英语
学科领域Astronomy & Astrophysics
文章类型Article
ISSN0004-6264
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归档日期2007-09-26
WOS记录号WOS:000249977200019
WOS研究方向Astronomy & Astrophysics
WOS类目Astronomy & Astrophysics
关键词[WOS]25 APRIL 1998 ; SPECTRAL LAGS ; LIGHT CURVES ; SPHERICAL FIREBALLS ; LUMINOSITY FUNCTION ; UNUSUAL SUPERNOVA ; PEAK LUMINOSITY ; NEUTRON-STAR ; TIME-LAGS ; EMISSION
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被引频次:17[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/114a53/7032
专题星系研究组
通讯作者Zhang, FW (reprint author), Chinese Acad Sci, Yunnan Observ, Natl Astron Observ, POB 110, Kunming 650011, Yunnan, Peoples R China.
作者单位1.National Astronomical Observatories/Yunnan Observatory, Chinese Academy of Sciences, P.O. Box 110, Kunming, Yunnan 650011, China
2.Center for Astrophysics, Guangzhou University, Guangzhou 510006, China
3.Physics Department, Guangxi University, Nanning, Guangxi 530004, China
4.The Graduate School of the Chinese Academy of Sciences, P.O. Box 3908, Beijing 100039, China
5.Department of Physics and Astronomy, University of Nevada, Las Vegas, NV 89154, USA
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Zhang FW,Qin, YP,Zhang BB,et al. Dependence of temporal properties on energy in long-lag, wide-pulse gamma-ray bursts[J]. PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN,2007,59(4):857-867.
APA Zhang FW,Qin, YP,Zhang BB,&Zhang, FW .(2007).Dependence of temporal properties on energy in long-lag, wide-pulse gamma-ray bursts.PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN,59(4),857-867.
MLA Zhang FW,et al."Dependence of temporal properties on energy in long-lag, wide-pulse gamma-ray bursts".PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN 59.4(2007):857-867.
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