YNAO OpenIR  > 星系研究组
Spectral lags caused by the curvature effect of fireballs
Lu RJ(陆睿静)1,2,3; Tan YP(覃一平)1,2; Zhang ZB(张志彬)1,3; Yi, TF2; Lu, RJ (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, POB 110, Kunming 650011, Peoples R China.
Source PublicationMONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
2006-03-21
Volume367Issue:1Pages:275-289
DOI10.1111/j.1365-2966.2005.19951.x
Contribution Rank第1完成单位
Indexed BySCI
KeywordRelativity Gamma-rays : Bursts Gamma-rays : Theory
AbstractRecently, Shen et al. have studied the contributions of the curvature effect of fireballs to the spectral lag and have shown that the observed lags can be accounted for by the effect. Here, we check their results by performing a more precise calculation with both formulae presented by Shen et al. and Qin et al. Several other aspects which were not considered by Shen et al. are investigated. We find that in the case of ultrarelativistic motions, both formulae are identical as long as the whole fireball surface is concerned. In our analysis, the previous conclusion that the detected spectral lags can be accounted for by the curvature effect is confirmed, while the conclusion that the lag has no dependence on the radius of fireballs is not true. We find that introducing extreme physical parameters is not the only outlet to explain these observed large lags. Even for the larger lags (similar to 5 s), a wider local pulse (Delta t(theta,FWHM)= 10(7) s) can account for it. Some conclusions not presented in Shen et al. or those modified in our analysis are listed below: (i) lag proportional to Gamma(-epsilon) with epsilon > 2; (ii) lag is proportional to the local pulse width and the full width at half-maximum of the observed light curves; (iii) a large lag requires a large alpha(0) and a small beta(0) as well as a large E-0,E-p; (iv) when the rest-frame spectrum varies with time, the lag would become larger; (v) lag decreases with the increase of R-c; (vi) lag proportional to E within the certain energy range for a given Lorentz factor; (vii) lag is proportional to the opening angle of uniform jets when theta(j) < 0.6 Gamma(-1).
Language英语
Subject AreaAstronomy & Astrophysics
SubtypeArticle
ISSN0035-8711
URL查看原文
Archive Date2006-06-21
WOS IDWOS:000235939700038
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS KeywordGAMMA-RAY BURSTS ; BATSE OBSERVATIONS ; PEAK LUMINOSITY ; PULSE-WIDTH ; ENERGY ; BRIGHT ; SPECTROSCOPY ; EVOLUTION ; CONNECTION ; CATALOG
Citation statistics
Cited Times:35[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ynao.ac.cn/handle/114a53/7005
Collection星系研究组
Corresponding AuthorLu, RJ (reprint author), Chinese Acad Sci, Natl Astron Observ, Yunnan Observ, POB 110, Kunming 650011, Peoples R China.
Affiliation1.National Astronomical Observatories/Yunnan Observatory, Chinese Academy of Sciences, PO Box 110, Kunming 650011, China
2.Physics Department, Guangxi University, Nanning, Guangxi 530004, China
3.The Graduate School of the Chinese Academy of Sciences
First Author AffilicationYunnan Observatories, Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Lu RJ,Tan YP,Zhang ZB,et al. Spectral lags caused by the curvature effect of fireballs[J]. MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,2006,367(1):275-289.
APA Lu RJ,Tan YP,Zhang ZB,Yi, TF,&Lu, RJ .(2006).Spectral lags caused by the curvature effect of fireballs.MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY,367(1),275-289.
MLA Lu RJ,et al."Spectral lags caused by the curvature effect of fireballs".MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY 367.1(2006):275-289.
Files in This Item:
File Name/Size DocType Version Access License
Spectral lags caused(777KB)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(陆睿静)]'s Articles
[Tan YP(覃一平)]'s Articles
[Zhang ZB(张志彬)]'s Articles
Baidu academic
Similar articles in Baidu academic
[Lu RJ(陆睿静)]'s Articles
[Tan YP(覃一平)]'s Articles
[Zhang ZB(张志彬)]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Lu RJ(陆睿静)]'s Articles
[Tan YP(覃一平)]'s Articles
[Zhang ZB(张志彬)]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: Spectral lags caused by the curvature effect of fireballs.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

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