Title

Spectral evolution studies of a sub-class of gamma ray bursts observed by BATSE

Document Type

Conference Proceeding

Publication Date

1-1-1993

Abstract

Among the gamma-ray bursts (GRB) observed by BATSE, we define a sub-class of bursts characterized by fast rise times (<0.5 sec) and a relatively slow decay times. Their time histories exhibit diverse variations. GRB s with such temporal features were selected and divided into shorter time segments. Spectral features were parameterized for each of the time segments using the BATSE Spectral Analysis Software (BSAS) from the large area detector data. The evolution of these parameters during the burst were studied in relation to the other observed variables like the intensity and temporal structure. A possible correlation between the time histories and spectral characteristics is explored.

Publication Source (Journal or Book title)

AIP Conference Proceedings

First Page

912

Last Page

916

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