Journal Article

Predicting gamma-ray burster redshifts from their prompt emission properties

Chris Koen

in Monthly Notices of the Royal Astronomical Society

Published on behalf of The Royal Astronomical Society

Volume 401, issue 2, pages 1369-1374
Published in print January 2010 | ISSN: 0035-8711
Published online January 2010 | e-ISSN: 1365-2966 | DOI: http://dx.doi.org/10.1111/j.1365-2966.2009.15737.x
Predicting gamma-ray burster redshifts from their prompt emission properties

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This paper presents a study of the relation between gamma-ray burster redshift and several of its prompt emission properties (spectral lag, light curve variability, peak energy, rise time and the peak bolometric flux Pbol). Simple predictors of log(1 +z) in terms of Pbol and the other indicators are derived. The typical scatter in the relations is 0.13 dex. An illustrative application to observations of GRB 090423 (z∼ 8) is given.

Keywords: methods: statistical; gamma-rays: bursts

Journal Article.  3299 words.  Illustrated.

Subjects: Astronomy and Astrophysics

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