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Observation of gamma ray bursts and flares by the EGRET telescope on the Compton Gamma Ray ObservatoryThe 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.
Document ID
19930056060
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Schneid, E. J.
(Grumman Aerospace Corp. Bethpage, NY, United States)
Bertsch, D. L.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Fichtel, C. E.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Hartman, R. C.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Hunter, S. D.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Kwok, P. W.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Mattox, J. R.
(Computer Sciences Corp.; NASA, Goddard Space Flight Center Greenbelt, MD, United States)
Sreekumar, P.
(Universities Space Research Association; NASA, Goddard Space Flight Center Greenbelt, MD, United States)
Thompson, D. J.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Kanbach, G.
(Max-Planck-Inst. fuer Extraterrestrische Physik Garching, Germany)
Date Acquired
August 16, 2013
Publication Date
January 1, 1992
Publication Information
Publication: In: Gamma-ray bursts; Proceedings of the Workshop, Univ. of Alabama, Huntsville, Oct. 16-18, 1991 (A93-40051 16-93)
Publisher: American Institute of Physics
Subject Category
Space Radiation
Accession Number
93A40057
Distribution Limits
Public
Copyright
Other

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