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

被引：148

作者：

Evans, P. A. ^{[1
]}

Willingale, R. ^{[1
]}

Osborne, J. P. ^{[1
]}

O'Brien, P. T. ^{[1
]}

Page, K. L. ^{[1
]}

Markwardt, C. B. ^{[2
,3
,4
]}

Barthelmy, S. D. ^{[2
]}

Beardmore, A. P. ^{[1
]}

Burrows, D. N. ^{[5
]}

Pagani, C. ^{[1
]}

Starling, R. L. C. ^{[1
]}

Gehrels, N. ^{[2
]}

Romano, P. ^{[6
]}

机构：

[1] Univ Leicester, Dept Phys & Astron, Leicester LE1 7RH, Leics, England

[2] NASA, Goddard Space Flight Ctr, Astrophys Sci Div, Greenbelt, MD 20771 USA

[3] CRESST, Columbia, MD 21044 USA

[4] Univ Maryland Coll Pk, Dept Astron, College Pk, MD 20742 USA

[5] Penn State Univ, Dept Astron & Astrophys, University Pk, PA 16802 USA

[6] INAF, Ist Astrofis Spaziale & Fis Cosm, I-90146 Palermo, Italy

来源：

ASTRONOMY & ASTROPHYSICS | 2010年 / 519卷

关键词：

gamma-ray burst: general; methods: data analysis; catalogs; AFTERGLOWS; TELESCOPE; EMISSION; MISSION; GRBS;

D O I：

10.1051/0004-6361/201014819

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

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(star) 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.

引用

页数：7

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