The Universe pp 105-109 | Cite as

Extragalactic Fire-Works in Gammarays

  • Patrick Das Gupta
Part of the Astrophysics and Space Science Library book series (ASSL, volume 244)

Abstract

The enigma of gamma-ray flashes from random locations in space releasing bursts of photons with energy mostly above ~ 0.1 MeV, on time-scales ranging from about 30 milli-seconds to ~ 103 seconds with diverse time-profiles, gives rise to one of the most challenging problems in astronomy that cajoles many theorists to create exotic models to understand the nature of gamma-ray bursts. Even professor Jayant Narlikar was not spared from the charm of gamma-ray flashes, having been provoked into working out a whitehole description of gamma ray bursters (GRBs) in late seventies! As a tribute to Prof. Narlikar, I will presently discuss some of the observational aspects of GRBs, and conclude with a brief description of our recent findings pertaining to temporal profiles of short-duration bursts.

Keywords

Neutron Star Wide Field Camera Gravitational Binding Energy Extragalactic Origin Exotic Model 
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 2000

Authors and Affiliations

  • Patrick Das Gupta
    • 1
  1. 1.Department of PhysicsUniversity of DelhiDelhiIndia

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