PMO OpenIR  > 院士文集  > 陆埮
High-energy component of GRB 941017 revisited and the reverse-shock synchrotron self-Compton emission
Wang, XY; Cheng, KS; Dai, ZG; Lu, T
2005-09-01
Source PublicationASTRONOMY & ASTROPHYSICS
Volume439Issue:3Pages:957-961
AbstractThe different temporal behaviors of the high energy component and the hundreds of keV emission from GRB 941017 suggest that they come from different emission regions. The nearly constant flux of this high energy component is consistent with being produced in the region of the early external shock formed when the ejecta hit the surrounding medium. Here we show that the relatively hard spectrum of this component can be numerically modelled as the synchrotron self-Compton emission from external reverse shock when the ejecta is decelerated by a typical interstellar medium. Constraints on the parameters of the fireball, such as the initial Lorentz factor., the burst energy, and the magnetic field equipartition fraction are obtained. Very high initial Lorentz factor (n greater than or similar to 10(3)) inferred for this burst may explain the rarity of this kind of high-energy component in gamma-ray bursts (GRBs). Large GeV - TeV flux from the reverse shock is predicted for GRBs with high initial Lorentz factors.
KeywordGamma Rays : Bursts Radiation Mechanisms : Non-thermal
Subject AreaAstronomy & Astrophysics
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1051/0004-6361.20052984
WOS KeywordGAMMA-RAY BURSTS ; EARLY AFTERGLOW EMISSION ; EARLY OPTICAL-EMISSION ; BACKGROUND-RADIATION ; SPECTRAL COMPONENT ; COSMIC-RAYS ; MODEL ; PREDICTIONS ; GRB-021211 ; PHOTONS
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000231206900014
Citation statistics
Cited Times:11[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/10953
Collection院士文集_陆埮
Affiliation1.Univ Hong Kong, Dept Phys, Hong Kong, Hong Kong, Peoples R China
2.Nanjing Univ, Dept Astron, Nanjing 210093, Peoples R China
3.Chinese Acad Sci, Purple Mtn Observ, Nanjing 210008, Peoples R China
Recommended Citation
GB/T 7714
Wang, XY,Cheng, KS,Dai, ZG,et al. High-energy component of GRB 941017 revisited and the reverse-shock synchrotron self-Compton emission[J]. ASTRONOMY & ASTROPHYSICS,2005,439(3):957-961.
APA Wang, XY,Cheng, KS,Dai, ZG,&Lu, T.(2005).High-energy component of GRB 941017 revisited and the reverse-shock synchrotron self-Compton emission.ASTRONOMY & ASTROPHYSICS,439(3),957-961.
MLA Wang, XY,et al."High-energy component of GRB 941017 revisited and the reverse-shock synchrotron self-Compton emission".ASTRONOMY & ASTROPHYSICS 439.3(2005):957-961.
Files in This Item:
File Name/Size DocType Version Access License
074-2005-AA-WaChDL-H(163KB) 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
[Wang, XY]'s Articles
[Cheng, KS]'s Articles
[Dai, ZG]'s Articles
Baidu academic
Similar articles in Baidu academic
[Wang, XY]'s Articles
[Cheng, KS]'s Articles
[Dai, ZG]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Wang, XY]'s Articles
[Cheng, KS]'s Articles
[Dai, ZG]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: 074-2005-AA-WaChDL-High-energy component of GRB 941017 revisited and the reverse-shock synchrotron self-Compton emission-439#-957-961-aa2984-05.pdf
Format: Adobe PDF
This file does not support browsing at this time
All comments (0)
No comment.
 

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