Observation of gamma ray bursts and flares by the EGRET telescope on the Compton Gamma Ray observatory
作者:
E. J. Schneid,
D. L. Bertsch,
C. E. Fichtel,
R. Hartman,
S. D. Hunter,
P. W. Kwok,
J. R. Mattox,
P. Sreekumar,
D. J. Thompson,
G. Kanbach,
M. A. Mayer‐Hasselwander,
C. von Montigny,
K. Pinkau,
H. Rothermel,
M. Sommer,
D. A. Kniffen,
Y. C. Lin,
P. F. Michelson,
P. L. Nolan,
期刊:
AIP Conference Proceedings
(AIP Available online 1991)
卷期:
Volume 265,
issue 1
页码: 38-42
ISSN:0094-243X
年代: 1991
DOI:10.1063/1.42768
出版商: AIP
数据来源: AIP
摘要:
The Energetic Gamma Ray Experiment Telescope (EGRET) on the Compton Gamma Ray observatory has observed energetic gamma ray bursts and flares. On May 3, 1991, EGRET detected a gamma ray burst both in the energy measuring NaI (Tl) scintillator and independently in the spark chamber imaging assembly. The NaI spectra were accumulated by a special BURST mode of EGRET. The spectra were measured over a range from 1 to 200 MeV, in three sequential spectra of 1, 2, and 4 seconds. During the peak of the burst, six individual gamma rays were detected in the spark chamber, allowing a determination of the burst arrival direction. The intense flares of June were also detected. A solar flare on June 4 was observed to last for several minutes and for a brief time, less than a minute, had significant emission of gamma rays exceeding 150 MeV.
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