On the Power Spectrum Density of Gamma Ray Bursts
نویسندگان
چکیده
Gamma ray bursts (GRBs) are known to have short-time variability and power-law behavior with the index −1.67 in the power spectrum density. Reanalyzing the expanded data, we have found a) the power-law comes from the global profile of the burst and not from the self-similar shots nor rapid fluctuations in the luminosity profile. b) The power indices vary from burst to burst and the value −1.67 is given simply as the mean value of the distribution; there is no systematic correlation among GRBs to yield the power law. Subject headings: gamma ray, burst, power spectrum density, power-law
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