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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.
Source PublicationPUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF JAPAN
2007
Volume59Issue:4Pages:857-867
Contribution Rank第1完成单位
Indexed BySCI
KeywordGamma Rays : Bursts Method : Statistical
AbstractWe 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.
Language英语
Subject AreaAstronomy & Astrophysics
SubtypeArticle
ISSN0004-6264
URL查看原文
Archive Date2007-09-26
WOS IDWOS:000249977200019
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS Keyword25 APRIL 1998 ; SPECTRAL LAGS ; LIGHT CURVES ; SPHERICAL FIREBALLS ; LUMINOSITY FUNCTION ; UNUSUAL SUPERNOVA ; PEAK LUMINOSITY ; NEUTRON-STAR ; TIME-LAGS ; EMISSION
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Cited Times:18[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/7032
Collection星系研究组
Corresponding AuthorZhang, FW (reprint author), Chinese Acad Sci, Yunnan Observ, Natl Astron Observ, POB 110, Kunming 650011, Yunnan, Peoples R China.
Affiliation1.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
First Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
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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