Correlations between Lag, Duration, Peak Luminosity, Hardness, and Asymmetry in Long GRB Pulses
Abstract
Continued study of the BATSE catalog verifies previously-identified correlations between pulse lag and pulse duration and corresponding anti-correlations between both properties and pulse peak flux for a large sample of Long GRB pulses; the study also finds correlations between pulse peak lags, pulse asymmetry, and pulse hardness. These correlations apparently can be used to delineate Long GRBs from Short ones. Correlated pulse properties represent constraints that can be used to guide theoretical modeling, whereas bulk prompt emission properties appear to be constructed by combining and smearing out pulse characteristics in ways that potentially lose valuable information.
Cite
@article{arxiv.0901.3171,
title = {Correlations between Lag, Duration, Peak Luminosity, Hardness, and Asymmetry in Long GRB Pulses},
author = {Jon Hakkila and Renata S. Cumbee},
journal= {arXiv preprint arXiv:0901.3171},
year = {2009}
}
Comments
6 pages, 10 figures, 2 tables, to appear in the proceedings of the Sixth Huntsville Gamma-Ray Burst Conference 2008, edited by C.A. Meegan, N. Gehrels, and C. Kouveliotou