Hardness ratio versus duration for PVO compared to BATSE and PHEBUS

Details Hardness ratio versus duration for PVO compared to BATSE and PHEBUS Hardness ratio versus duration for PVO compared to BATSE and PHEBUS

Aug 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996aipc..384..101s&link_type=abstract

Gamma-ray bursts: 3rd Huntsville symposium. AIP Conference Proceedings, Volume 384, pp. 101-105 (1996).

Mathematics

1

Gamma-Ray Sources, Gamma-Ray Bursts, Mathematical Procedures And Computer Techniques, Gamma-Ray

Scientific paper

Previous studies have suggested that scatterplots of a measure of the burst hardness versus a measure of the burst duration might be used to separate the bursts into two classes in a cleaner way than using the duration alone. This effect has been seen by both BATSE and PHEBUS: the shorter bursts being harder than the longer bursts. However, we do not find a significant trend of this nature in the PVO bursts. We also show that the quantity used to calculate the hardness ratio can be important, because it affects the size of the error bars and consequently the confidence to which an individual burst can be assigned to a class.

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