YNAO OpenIR  > 星系研究组
Origination of gamma-ray burst pulses associated with the Doppler effect of spherical fireballs or uniform jet
Lu, RJ1; Tan YP(覃一平)1,2,3; Zhang FW(张富文)3,4
Source PublicationCHINESE PHYSICS
2007-06
Volume16Issue:6Pages:1806-1816
DOI10.1088/1009-1963/16/6/055
Contribution Rank第3完成单位
Indexed BySCI ; EI
KeywordAmma-ray Bursts Gamma-rays
AbstractRyde and Petrosian have pointed out that the rise phases of gamma-ray burst (GRB) pulses originate from the widths of the intrinsic pulses and their decay phases are determined by the curvature effect of the expanding fireball surface based on their simplified formula. In this paper we investigate in detail the issue based on the formula in Ref.[20], which is derived based on a model of highly symmetric expanding fireballs, where the Doppler effect is the key factor to be concerned about, and no terms are omitted in their derivation. Our analyses show that the decay phases of the observed pulses originate from the contributions from both the curvature effect of the expanding fireball and the two time scales of the local pulses, and the rise phases of the observed pulses only come from the two time scales of the local pulses. Associated with a local pulse with both rise and decay portions, the light curve of GRBs in the rise portion is expected to undergo a concave phase and then a convex one, whereas that in the decay portion is expected to evolve by an opposite process. And the ratio of the concave time scale to the convex one in the rise phase of the observed pulse linearly increases with the ratio of the rising time scale to the decay one of the local pulse (rrd), whereas the ratio of the convex tim escale to the concave time scale in its decay phase linearly decreases with rrd. The two correlations are independent of the local pulse forms and the rest-frame radiation forms. But the different forms of local pulses and the different values of rrd gives rise to the diversity of the light curve pulse shapes. We test a sample of 86 GRB pulses detected by the BATSE instrument on board the Compton Gamma Ray Observatory and find that the characteristics do exist in the light curve of GRBs.
Language英语
Subject AreaPhysics
SubtypeArticle
ISSN1009-1963
URL查看原文
WOS IDWOS:000247045100055
WOS Research AreaPhysics
WOS SubjectPhysics, Multidisciplinary
WOS KeywordBATSE OBSERVATIONS ; TIME PROFILES ; SPECTRAL CATALOG ; LIGHT CURVES ; ENERGY ; BRIGHT ; EMISSION ; WIDTH ; SPECTROSCOPY ; SIGNATURES
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/7024
Collection星系研究组
Corresponding AuthorLu, RJ
Affiliation1.Physical Science & Technology college, Guangxi University, Nanning 530004, China
2.Center for Astrophysics, Guangzhou University, Guangzhou 510006, China
3.National Astronomical Observatories/Yunnan Observatory, Chinese Academy of Sciences, Kunming 650011, China
4.The Graduate School of the Chinese Academy of Sciences, Beijing 100049, China
Recommended Citation
GB/T 7714
Lu, RJ,Tan YP,Zhang FW. Origination of gamma-ray burst pulses associated with the Doppler effect of spherical fireballs or uniform jet[J]. CHINESE PHYSICS,2007,16(6):1806-1816.
APA Lu, RJ,Tan YP,&Zhang FW.(2007).Origination of gamma-ray burst pulses associated with the Doppler effect of spherical fireballs or uniform jet.CHINESE PHYSICS,16(6),1806-1816.
MLA Lu, RJ,et al."Origination of gamma-ray burst pulses associated with the Doppler effect of spherical fireballs or uniform jet".CHINESE PHYSICS 16.6(2007):1806-1816.
Files in This Item:
File Name/Size DocType Version Access License
Origination of gamma(731KB)期刊论文作者接受稿开放获取CC BY-NC-SAView Application Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Lu, RJ]'s Articles
[Tan YP(覃一平)]'s Articles
[Zhang FW(张富文)]'s Articles
Baidu academic
Similar articles in Baidu academic
[Lu, RJ]'s Articles
[Tan YP(覃一平)]'s Articles
[Zhang FW(张富文)]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Lu, RJ]'s Articles
[Tan YP(覃一平)]'s Articles
[Zhang FW(张富文)]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: Origination of gamma-ray burst pulses associated with the Doppler effect of spherical fireballs or uniform jet.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.