Observations of Gamma-Ray Bursts

  • G. J. Fishman
Chapter
Part of the NATO ASI Series book series (ASIC, volume 461)

Abstract

Some basic observed properties of gamma-ray bursts are reviewed. Although some properties were known 25 years ago, new and more detailed observations have been made by the Compton Observatory in the past three years. The new observation with the greatest impact has been the observed isotropic distribution of bursts along with a deficiency of weak bursts which would be expected from a homogeneous burst distribution. This is not compatible with any known Galactic population of objects. Gamma-ray bursts show an enormous variety of burst morphologies and a wide spread in burst durations. The spectra of gamma-ray bursts are characterized by rapid variations and peak power which is almost entirely in the gamma-ray energy range. Delayed gamma-ray burst photons extending to GeV energies have been detected for the first time. A time dilation effect has also been reported to be observed in gamma-ray bursts. The observation of a gamma-ray burst counterpart in another wavelength region has yet to be made.

Keywords

Oort Cloud Strong Burst Pioneer Venus Orbiter Burst Location Weak Burst 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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Copyright information

© Springer Science+Business Media Dordrecht 1995

Authors and Affiliations

  • G. J. Fishman
    • 1
  1. 1.Space Sciences LaboratoryNASA/Marshall Space Flight CenterHuntsvilleUSA

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