中国科学院紫金山天文台机构知识库
Advanced  
PMO OpenIR  > 卫星精密定轨及应用研究团组  > 期刊论文
题名: Comparison between the time-integrated spectrum and the peak time spectrum of gamma-ray bursts and possible implications
作者: Lyu Fen1, 2, 3, 4; Wang YuanZhu1, 2; Liang YunFeng(梁云峰)1, 2, 3; Lin TingTing1, 2; Hu YouDong1, 2; Liang EnWei1, 2, 4
刊名: SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
出版日期: 2015-03-01
卷号: 58, 期号:3, 页码:39501
关键词: gamma-ray sources ; gamma-ray bursts ; gamma-rays: astronomical observations
学科分类: 天文和天体物理
DOI: 10.1007/s11433-014-5575-1
文章类型: Article
英文摘要: The mono-frequency peak luminosity and the corresponding photon energy of the time-integrated (L-p(s), E-p(s)) and peak time (L-p(t), E-p(t)) nu f(nu) spectra were derived for a sample of 38 redshift-known Fermi GRBs by fitting the spectra with the Band function. It was found that E-p(t) is generally consistent with E-p(s), and L-p(t) is averagely three times larger than L-p(s). The slope of the L-p(t) - E-p(t), relation was consistent with that of the L-p(s) - E-p(s) relation. The photon indices in the peak time spectrum, particularly, the index of the low energy end was, were statistically larger than that in the time-integrated spectrum. These results indicate that L-p(s) and E-p(s) are dominated by L-p(t) and E-p(t) respectively. The difference of the spectral indices between the time-integrated and peak time spectra may be because of the overlap effect of a series of time-resolved spectra within a GRB. Our simulations, which were based on the observed spectral evolution and correlation between the energy flux and the peak energy within individual GRBs support our speculations. The L-p(t) - E-p(t) relation may be less contaminated by the overlap effect, and it would may be an intrinsic feature of radiation physics.
WOS标题词: Science & Technology ; Physical Sciences
类目[WOS]: Physics, Multidisciplinary
研究领域[WOS]: Physics
关键词[WOS]: E-P RELATION ; PROMPT EMISSION ; FERMI OBSERVATIONS ; GRB 080916C ; COMPREHENSIVE ANALYSIS ; SWIFT ERA ; ENERGY ; LUMINOSITY ; MODELS ; RADIATION
收录类别: SCI
所属项目名称: PMO_LIB-IR
语种: 英语
WOS记录号: WOS:000349813600012
Citation statistics:
内容类型: 期刊论文
URI标识: http://libir.pmo.ac.cn/handle/332002/14921
Appears in Collections:卫星精密定轨及应用研究团组_期刊论文

Files in This Item:
File Name/ File Size Content Type Version Access License
2015093.pdf(616KB)----限制开放View 联系获取全文

作者单位: 1.Guangxi Univ, Dept Phys, Nanning 530004, Peoples R China
2.Guangxi Univ, GXU NAOC Ctr Astrophys & Space Sci, Nanning 530004, Peoples R China
3.Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Peoples R China
4.Chinese Acad Sci, Key Lab Struct & Evolut Celestial Objects, Kunming 650011, Peoples R China
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Lyu Fen]'s Articles
[Wang YuanZhu]'s Articles
[Liang YunFeng]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Lyu Fen]‘s Articles
[Wang YuanZhu]‘s Articles
[Liang YunFeng]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
Add to CiteULike Add to Connotea Add to Del.icio.us Add to Digg Add to Reddit
文件名: 2015093.pdf
格式: Adobe PDF
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

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

 

 

Valid XHTML 1.0!
Copyright © 2007-2018  中国科学院紫金山天文台 - Feedback
Powered by CSpace