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The Swift Burst Analyser I. BAT and XRT spectral and flux evolution of gamma ray bursts

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journal contribution
posted on 24.10.2012, 09:06 by P. A. Evans, R. Willingale, J. P. Osborne, P. T. O'Brien, K. L. Page, C. B. Markwardt, S. D. Barthelmy, A. P. Beardmore, D. N. Burrows, C. Pagani, R. L. C. Starling, N. Gehrels, P. Romano
Context: Gamma ray burst models predict the broadband spectral evolution and the temporal evolution of the energy flux. In contrast, standard data analysis tools and data repositories provide count-rate data, or use single flux conversion factors for all of the data, neglecting spectral evolution. Aims: We produce Swift BAT and XRT light curves in flux units, where the spectral evolution is accounted for. Methods: We have developed software to use the hardness ratio information to track spectral evolution of GRBs, and thus to convert the count-rate light curves from the BAT and XRT instruments on Swift into accurate, evolution-aware flux light curves. Results: The Swift Burst Analyser website (http://www.swift.ac.uk/burst_analyser) contains BAT, XRT and combined BAT-XRT flux light curves in three energy regimes for all GRBs observed by the Swift satellite. These light curves are automatically built and updated when data become available, are presented in graphical and plain-text format, and are available for download and use in research.

History

Citation

Astronomy and Astrophysics , 2010, 519, A102

Version

VoR (Version of Record)

Published in

Astronomy and Astrophysics

Publisher

EDP Sciences for European Southern Observatory (ESO)

issn

0004-6361

eissn

1432-0746

Copyright date

2010

Available date

24/10/2012

Publisher version

http://www.aanda.org/articles/aa/abs/2010/11/aa14819-10/aa14819-10.html

Language

English