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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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