Wavelet analysis and lognormal distributions in GRBs
作者:
Kevin J. Hurley,
Brian McBreen,
Fergus Quilligan,
Matt Delaney,
Lorraine Hanlon,
期刊:
AIP Conference Proceedings
(AIP Available online 1998)
卷期:
Volume 428,
issue 1
页码: 191-195
ISSN:0094-243X
年代: 1998
DOI:10.1063/1.55319
出版商: AIP
数据来源: AIP
摘要:
A wavelet analysis has been performed on 80 intense gamma-ray bursts (GRBs) from the BATSE 3B catalog with durations longer than 2 seconds. The wavelet analysis applied novel features developed for edge detection in image processing and this filtering process was used to extract a fit to the irregular GRB profile from the background. A straightforward algorithm was subsequently used to identify statistically significant peaks in this profile. The areas and FWHM of 270 peaks that were characterised as isolated were found to be consistent with lognormal distributions. The distribution of time intervals between peak maxima for all 963 identified peaks in the GRBs is also presented. ©1998 American Institute of Physics.
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