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星期三, 一月 21, 2009

Hakkila 2009 pulse的统计关系用做红移指示器

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Title:
Gamma-Ray Burst Pulse Correlations as Redshift Indicators
Authors:
Hakkila, Jon; Fragile, P. Chris; Giblin, Timothy W.
Publication:
eprint arXiv:0901.3174
Publication Date:
01/2009
Origin:
ARXIV
Keywords:
Astrophysics - High Energy Astrophysical Phenomena, Astrophysics - Cosmology and Extra-Galactic Astrophysics
Comment:
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
Bibliographic Code:
2009arXiv0901.3174H

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.
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