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Observations of High-energy Gamma-ray Bursts with EGRET

Published online by Cambridge University Press:  12 April 2016

M. Merck ,
D.L. Bertsch ,
B.L. Dingus ,
C.E. Fichtel ,
R.C. Hartman ,
S.D. Hunter ,
G. Kanbach ,
D.A. Kniffen ,
Y.C. Lin  and
H.A. Mayer-Hasselwander
...Show all authors
M. Merck
Affiliation:
Max-Planck-Institut für extraterrestrische Physik, D-85748 Garching, Germany
D.L. Bertsch
Affiliation:
NASA/Goddard Space Flight Center, Greenbelt, MD 20771, USA
B.L. Dingus
Affiliation:
NASA/Goddard Space Flight Center, Greenbelt, MD 20771, USA Universities Space Research Association, NASA/GSFC, Greenbelt, MD 20771, USA
C.E. Fichtel
Affiliation:
NASA/Goddard Space Flight Center, Greenbelt, MD 20771, USA
R.C. Hartman
Affiliation:
NASA/Goddard Space Flight Center, Greenbelt, MD 20771, USA
S.D. Hunter
Affiliation:
NASA/Goddard Space Flight Center, Greenbelt, MD 20771, USA
G. Kanbach
Affiliation:
Max-Planck-Institut für extraterrestrische Physik, D-85748 Garching, Germany
D.A. Kniffen
Affiliation:
Hampden-Sydney College, P.O. Box 862, Hampden-Sydney, VA 23943, USA
Y.C. Lin
Affiliation:
Hansen Experimental Physics Laboratory, Stanford University, Stanford CA 94305, USA
H.A. Mayer-Hasselwander
Affiliation:
Max-Planck-Institut für extraterrestrische Physik, D-85748 Garching, Germany
P.F. Michelson
Affiliation:
Hansen Experimental Physics Laboratory, Stanford University, Stanford CA 94305, USA
C. von Montignty
Affiliation:
NASA/Goddard Space Flight Center, Greenbelt, MD 20771, USA
R. Mukherjee
Affiliation:
NASA/Goddard Space Flight Center, Greenbelt, MD 20771, USA Universities Space Research Association, NASA/GSFC, Greenbelt, MD 20771, USA
P.L. Nolan
Affiliation:
Hansen Experimental Physics Laboratory, Stanford University, Stanford CA 94305, USA
M. Pohl
Affiliation:
Max-Planck-Institut für extraterrestrische Physik, D-85748 Garching, Germany
P. Sreekumar
Affiliation:
NASA/Goddard Space Flight Center, Greenbelt, MD 20771, USA Universities Space Research Association, NASA/GSFC, Greenbelt, MD 20771, USA
E.J. Schneid
Affiliation:
Northrop Grumman Corporation, Mail Stop A01-26, Bethpage, NY 11714-3580, USA
D.J. Thompson
Affiliation:
NASA/Goddard Space Flight Center, Greenbelt, MD 20771, USA

Extract

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Gamma Ray Bursts (GRBs) have puzzled astronomers since their discovery more than 20 years ago. As no counterparts at wavelengths other than X- and γ-rays have yet been found the identification of the sources is still missing. Theoretical explanations range from colliding comets (1993) and merging neutron stars (1982) to more exotic objects, such as superconducting cosmic strings (1988). Data accumulated until now still do not discriminate between these models, although results from the BATSE (Burst and Transient Source Experiment) instrument aboard the Compton Gamma Ray Observatory (CGRO) strongly favor extragalactic models.

The Energetic Gamma Ray Experiment Telescope (EGRET) aboard CGRO has s ofar detected photons from 5 GRBs with its spark chamber. These are the highest energy γ-rays associated with GRBs to date. In this work we review previously published data and summarize the properties of these events. Elsewhere we present possible constraints from the data on the models proposed to explain GRBs.

Type
Gamma-Ray Bursts
Information
International Astronomical Union Colloquium , Volume 151: Flares and Flashes , 1995 , pp. 358 - 362
Copyright
Copyright © Springer-Verlag 1995

References

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