Extragalactic Fire-Works in Gammarays
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.
KeywordsNeutron Star Wide Field Camera Gravitational Binding Energy Extragalactic Origin Exotic Model
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