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SEARCH FOR GeV GAMMA-RAY BURSTS WITH THE ARGO-YBJ DETECTOR: SUMMARY OF EIGHT YEARS OF OBSERVATIONS
ARGO-YBJ Collaboration
2014
发表期刊ASTROPHYSICAL JOURNAL
卷号794期号:1
通讯作者Di Girolamo, T (reprint author), Univ Naples Federico II, Dipartimento Fis, Complesso Univ Monte StAngelo, I-80126 Naples, Italy.
摘要The search for gamma-ray burst (GRB) emission in the energy range of 1-100 GeV in coincidence with the satellite detection has been carried out using the Astrophysical Radiation with Ground-based Observatory at YangBaJing (ARGO-YBJ) experiment. The high-altitude location (4300ma.s.l.), the large active surface (similar to 6700 m(2) of Resistive Plate Chambers), the wide field of view (similar to 2 sr, limited only by the atmospheric absorption), and the high duty cycle (>86%) make the ARGO-YBJ experiment particularly suitable to detect short and unexpected events like GRBs. With the scaler mode technique, i. e., counting all the particles hitting the detector with no measurement of the primary energy and arrival direction, the minimum threshold of similar to 1 GeV can be reached, overlapping the direct measurements carried out by satellites. During the experiment lifetime from 2004 December 17 to 2013 February 7, a total of 206 GRBs occurring within the ARGO-YBJ field of view (zenith angle. similar to 45.) have been analyzed. This is the largest sample of GRBs investigated with a ground-based detector. Two light curve models have been assumed and since in both cases no significant excess has been found, the corresponding fluence upper limits in the 1-100 GeV energy region have been derived, with values as low as 10-5 erg cm(-2). The analysis of a subset of 24 GRBs with known redshift has been used to constrain the fluence extrapolation to the GeV region together with possible cutoffs under different assumptions on the spectrum.
关键词HIGH-ENERGY EMISSION CHERENKOV TELESCOPE ARRAY SELF-COMPTON EMISSION FERMI OBSERVATIONS SPECTRAL CATALOG SCALER MODE GRB 090510 COMPONENT AFTERGLOW SWIFT
学科领域Astronomy & Astrophysics
DOI10.1088/0004-637X/794/1/82
收录类别SCI
语种英语
WOS类目Astronomy & Astrophysics
WOS记录号WOS:000342581200082
引用统计
被引频次:7[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/213790
专题粒子天体物理中心
作者单位中国科学院高能物理研究所
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ARGO-YBJ Collaboration. SEARCH FOR GeV GAMMA-RAY BURSTS WITH THE ARGO-YBJ DETECTOR: SUMMARY OF EIGHT YEARS OF OBSERVATIONS[J]. ASTROPHYSICAL JOURNAL,2014,794(1).
APA ARGO-YBJ Collaboration.(2014).SEARCH FOR GeV GAMMA-RAY BURSTS WITH THE ARGO-YBJ DETECTOR: SUMMARY OF EIGHT YEARS OF OBSERVATIONS.ASTROPHYSICAL JOURNAL,794(1).
MLA ARGO-YBJ Collaboration."SEARCH FOR GeV GAMMA-RAY BURSTS WITH THE ARGO-YBJ DETECTOR: SUMMARY OF EIGHT YEARS OF OBSERVATIONS".ASTROPHYSICAL JOURNAL 794.1(2014).
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