The Swift burst analyser

I. BAT and XRT spectral and flux evolution of gamma ray bursts

P. A. Evans, R. Willingale, J. P. Osborne, P. T. O'brien, K. L. Page, C. B. Markwardt, S. D. Barthelmy, A. P. Beardmore, David Nelson Burrows, C. Pagani, R. L.C. Starling, N. Gehrels, P. Romano

Research output: Contribution to journalArticle

77 Citations (Scopus)

Abstract

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.

Original languageEnglish (US)
Article numberA102
JournalAstronomy and Astrophysics
Volume519
Issue number12
DOIs
StatePublished - Sep 20 2010

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gamma ray bursts
bursts
light curve
temporal evolution
websites
energy flux
repository
hardness
plains
format
software
broadband
computer programs
energy
rate

All Science Journal Classification (ASJC) codes

  • Astronomy and Astrophysics
  • Space and Planetary Science

Cite this

Evans, P. A., Willingale, R., Osborne, J. P., O'brien, P. T., Page, K. L., Markwardt, C. B., ... Romano, P. (2010). The Swift burst analyser: I. BAT and XRT spectral and flux evolution of gamma ray bursts. Astronomy and Astrophysics, 519(12), [A102]. https://doi.org/10.1051/0004-6361/201014819
Evans, P. A. ; Willingale, R. ; Osborne, J. P. ; O'brien, P. T. ; Page, K. L. ; Markwardt, C. B. ; Barthelmy, S. D. ; Beardmore, A. P. ; Burrows, David Nelson ; Pagani, C. ; Starling, R. L.C. ; Gehrels, N. ; Romano, P. / The Swift burst analyser : I. BAT and XRT spectral and flux evolution of gamma ray bursts. In: Astronomy and Astrophysics. 2010 ; Vol. 519, No. 12.
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Evans, PA, Willingale, R, Osborne, JP, O'brien, PT, Page, KL, Markwardt, CB, Barthelmy, SD, Beardmore, AP, Burrows, DN, Pagani, C, Starling, RLC, Gehrels, N & Romano, P 2010, 'The Swift burst analyser: I. BAT and XRT spectral and flux evolution of gamma ray bursts', Astronomy and Astrophysics, vol. 519, no. 12, A102. https://doi.org/10.1051/0004-6361/201014819

The Swift burst analyser : I. BAT and XRT spectral and flux evolution of gamma ray bursts. / Evans, P. A.; Willingale, R.; Osborne, J. P.; O'brien, P. T.; Page, K. L.; Markwardt, C. B.; Barthelmy, S. D.; Beardmore, A. P.; Burrows, David Nelson; Pagani, C.; Starling, R. L.C.; Gehrels, N.; Romano, P.

In: Astronomy and Astrophysics, Vol. 519, No. 12, A102, 20.09.2010.

Research output: Contribution to journalArticle

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AU - O'brien, P. T.

AU - Page, K. L.

AU - Markwardt, C. B.

AU - Barthelmy, S. D.

AU - Beardmore, A. P.

AU - Burrows, David Nelson

AU - Pagani, C.

AU - Starling, R. L.C.

AU - Gehrels, N.

AU - Romano, P.

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N2 - 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.

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Evans PA, Willingale R, Osborne JP, O'brien PT, Page KL, Markwardt CB et al. The Swift burst analyser: I. BAT and XRT spectral and flux evolution of gamma ray bursts. Astronomy and Astrophysics. 2010 Sep 20;519(12). A102. https://doi.org/10.1051/0004-6361/201014819