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A search for luminosity - Spectral hardness correlations in SIGNE gamma-ray burst dataWe use simple 2-parameter models to fit gamma-ray burst spectra from the SIGNE experiments aboard the Venera 13 and 14 spacecraft in order to estimate burst luminosity and spectral hardness. We then look for correlations between these two parameters. The hardness is characterized by kT and Ec for thermal bremsstrahlung and thermal synchrotron fits, respectively. The spectra are integrated over 1/2 s or longer, depending on photon statistics. We find that generally luminosity increases with spectral hardness. We fit power laws of the form L varies as kT sup gamma to 12 bursts. A wide range of indices with gamma = 0.5-2.5 is found, broader than that reported by Golenetskii et al. (1983).
Document ID
19930056088
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Kargatis, Vincent E.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Liang, Edison P.
(Rice Univ. Houston, TX, United States)
Hurley, Kevin C.
(California Univ. Berkeley, United States)
Date Acquired
August 16, 2013
Publication Date
January 1, 1992
Publication Information
Publication: In: Gamma-ray bursts; Proceedings of the Workshop, Univ. of Alabama, Huntsville, Oct. 16-18, 1991 (A93-40051 16-93)
Publisher: American Institute of Physics
Subject Category
Space Radiation
Accession Number
93A40085
Funding Number(s)
CONTRACT_GRANT: NAG5-1515
Distribution Limits
Public
Copyright
Other

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