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FERMI LARGE AREA TELESCOPE OBSERVATIONS OF GRB 110625A
Tam, P. H. T.1,2; Kong, A. K. H.1,2; Fan, Yi-Zhong3,4
2012-08-01
Source PublicationASTROPHYSICAL JOURNAL
ISSN0004-637X
Volume754Issue:2Pages:117(5pp)
AbstractGamma-ray bursts (GRBs) that emit photons at GeV energies form a small but significant population of GRBs. However, the number of GRBs whose GeV-emitting period is simultaneously observed in X-rays remains small. We report gamma-ray observations of GRB 110625A using Fermi's Large Area Telescope in the energy range 100 MeV-20 GeV. Gamma-ray emission at these energies was clearly detected using data taken between 180 s and 580 s after the burst, an epoch after the prompt emission phase. The GeV light curve differs from a simple power-law decay, and probably consists of two emission periods. Simultaneous Swift X-Ray Telescope observations did not show flaring behaviors as in the case of GRB 100728A. We discuss the possibility that the GeV emission is the synchrotron self-Compton radiation of underlying ultraviolet flares.
KeywordGamma-ray Burst: Individual (Grb 110625a) Gamma Rays: Stars
Subject AreaAstronomy & Astrophysics
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1088/0004-637X/754/2/117
WOS KeywordGAMMA-RAY BURSTS ; HIGH-ENERGY EMISSION ; AFTERGLOW EMISSION ; FIREBALL MODEL ; 080916C ; ORIGINS ; FLARES ; SWIFT
Indexed BySCI
Language英语
WOS Research AreaAstronomy & Astrophysics
WOS SubjectAstronomy & Astrophysics
WOS IDWOS:000306666700038
Citation statistics
Cited Times:9[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/7944
Collection暗物质和空间天文实验室
Affiliation1.Natl Tsing Hua Univ, Inst Astron, Hsinchu 30013, Taiwan
2.Natl Tsing Hua Univ, Dept Phys, Hsinchu 30013, Taiwan
3.Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Peoples R China
4.Chinese Acad Sci, Key Lab Dark Matter & Space Astron, Nanjing 210008, Peoples R China
Recommended Citation
GB/T 7714
Tam, P. H. T.,Kong, A. K. H.,Fan, Yi-Zhong. FERMI LARGE AREA TELESCOPE OBSERVATIONS OF GRB 110625A[J]. ASTROPHYSICAL JOURNAL,2012,754(2):117(5pp).
APA Tam, P. H. T.,Kong, A. K. H.,&Fan, Yi-Zhong.(2012).FERMI LARGE AREA TELESCOPE OBSERVATIONS OF GRB 110625A.ASTROPHYSICAL JOURNAL,754(2),117(5pp).
MLA Tam, P. H. T.,et al."FERMI LARGE AREA TELESCOPE OBSERVATIONS OF GRB 110625A".ASTROPHYSICAL JOURNAL 754.2(2012):117(5pp).
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