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The spectral lag distribution of swift gamma-ray bursts
KTH, School of Engineering Sciences (SCI), Physics.
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2009 (English)In: Gamma-Ray Busts, American Institute of Physics (AIP), 2009, 403-405 p.Conference paper, Published paper (Refereed)
Abstract [en]

Swift has detected 350 GRBs from its launch in November 2004 up to August 2008. Approximately one third of these bursts have a measured redshift. We present the spectral lag distributions of long and short-duration Swift GRBs. The spectral lags are determined using a cross-correlation analysis between lightcurves in the 15-25 and 50-100 keV BAT energy channels. The proposed relationship between spectral lag and isotropic peak luminosity is investigated for the GRBs with known redshift. The sensitivity of BAT does not allow the lags of very faint bursts to be measured and so a correlation between faint, long-lag Swift GRBs and the supergalactic plane cannot be confirmed using this sample.

Place, publisher, year, edition, pages
American Institute of Physics (AIP), 2009. 403-405 p.
Series
AIP Conference Proceedings, ISSN 0094-243X ; 1133
Keyword [en]
Gamma-rays: Bursts
National Category
Astronomy, Astrophysics and Cosmology
Identifiers
URN: urn:nbn:se:kth:diva-153514DOI: 10.1063/1.3155932ISI: 000267717300094Scopus ID: 2-s2.0-70450162870ISBN: 978-073540670-4 (print)OAI: oai:DiVA.org:kth-153514DiVA: diva2:753809
Conference
6th Huntsville Symposium on Gamma-Ray Bursts, 20 October 2008 through 23 October 2008, Huntsville, AL, United States
Note

QC 20141009

Available from: 2014-10-09 Created: 2014-10-06 Last updated: 2014-10-09Bibliographically approved

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CiteExportLink to record
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  • apa
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  • de-DE
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  • nn-NO
  • nn-NB
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  • Other locale
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Output format
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