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A large catalog of homogeneous ultra-violet/optical GRB afterglows : temporal and spectral evolution
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Roming, Peter W. A., Koch, T. Scott, Oates, S. R., Porterfield, Blair L., Bayless, Amanda J., Breeveld, Alice A., Gronwall, Caryl, Kuin, N. P. M., Page, Mat J., Pasquale, Massimiliano de, Siegel, Michael H., Swenson, Craig A. and Tobler, Jennifer M. (2017) A large catalog of homogeneous ultra-violet/optical GRB afterglows : temporal and spectral evolution. The Astrophysical Journal Supplement Series, 228 (2). 13. doi:10.3847/1538-4365/228/2/13 ISSN 0067-0049.
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Official URL: http://dx.doi.org/10.3847/1538-4365/228/2/13
Abstract
We present the second Swift Ultra-Violet/Optical Telescope (UVOT) gamma-ray burst (GRB) afterglow catalog, greatly expanding on the first Swift UVOT GRB afterglow catalog. The second catalog is constructed from a database containing over 120, 000 independent UVOT observations of 538 GRBs first detected by Swift, the High Energy Transient Explorer 2 (HETE2), the INTErnational Gamma-Ray Astrophysics Laboratory (INTEGRAL), the Interplanetary Network (IPN), Fermi, and Astro-rivelatore Gamma a Immagini Leggero (AGILE). The catalog covers GRBs discovered from 2005 Jan 17 to 2010 Dec 25. Using photometric information in three UV bands, three optical bands, and a ‘white’ or open filter, the data are optimally co-added to maximize the number of detections and normalized to one band to provide a detailed light curve. The catalog provides positional, temporal, and photometric information for each burst, as well as Swift Burst Alert Telescope (BAT) and X-Ray Telescope (XRT) GRB parameters. Temporal slopes are provided for each UVOT filter. The temporal slope per filter of almost half the GRBs are fit with a single power-law, but one to three breaks are required in the remaining bursts. Morphological comparisons with the X-ray reveal that ∼ 75% of the UVOT light curves are similar to one of the four morphologies identified by Evans et al. (2009). The remaining ∼ 25% have a newly identified morphology. For many bursts, redshift and extinction corrected UV/optical spectral slopes are also provided at 2 × 10³, 2 × 10⁴, and 2 × 10⁵ seconds.
Item Type: | Journal Article | ||||||||||||
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Subjects: | Q Science > QB Astronomy | ||||||||||||
Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||||||||||
Library of Congress Subject Headings (LCSH): | Gamma ray bursts | ||||||||||||
Journal or Publication Title: | The Astrophysical Journal Supplement Series | ||||||||||||
Publisher: | Institute of Physics Publishing, Inc. | ||||||||||||
ISSN: | 0067-0049 | ||||||||||||
Official Date: | 6 January 2017 | ||||||||||||
Dates: |
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Volume: | 228 | ||||||||||||
Number: | 2 | ||||||||||||
Article Number: | 13 | ||||||||||||
DOI: | 10.3847/1538-4365/228/2/13 | ||||||||||||
Status: | Peer Reviewed | ||||||||||||
Publication Status: | Published | ||||||||||||
Date of first compliant deposit: | 5 December 2017 | ||||||||||||
Date of first compliant Open Access: | 6 December 2017 | ||||||||||||
RIOXX Funder/Project Grant: |
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