Gamma-Ray Burst Pulse Correlations as Redshift Indicators
High Energy Astrophysical Phenomena
2009-06-25 v1 Cosmology and Nongalactic Astrophysics
Abstract
Correlations among pulse properties in the prompt emission of long GRBs can potentially be used as cosmological distance indicators to estimate redshifts of GRBs to which these pulses belong. We demonstrate application of this technique to a sample of GRBs for which redshifts are not known. We also study the scatter of predicted redshifts of pulses found within individual bursts. We explore the characteristics of this scatter in hopes of identifying systematic corrections and/or pulse subsets that can be used to increase the technique's reliability.
Cite
@article{arxiv.0901.3174,
title = {Gamma-Ray Burst Pulse Correlations as Redshift Indicators},
author = {Jon Hakkila and P. Chris Fragile and Timothy W. Giblin},
journal= {arXiv preprint arXiv:0901.3174},
year = {2009}
}
Comments
3 pages and 6 figures, to appear in the proceedings of the Sixth Huntsville Gamma-Ray Burst Symposium, edited by C.A. Meegan, N. Gehrels, and C. Kouveliotou