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Low radio-derived star formation rates in z < 0.5 gamma-ray burst host galaxies
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Stanway, Elizabeth R., Davies, Luke J. M. and Levan, A. J. (2010) Low radio-derived star formation rates in z < 0.5 gamma-ray burst host galaxies. Monthly Notices of the Royal Astronomical Society: Letters, Vol.409 (No.1). L74-L78. doi:10.1111/j.1745-3933.2010.00951.x ISSN 1745-3925.
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Official URL: http://dx.doi.org/10.1111/j.1745-3933.2010.00951.x
Abstract
We present 5.5- and 9.0-GHz observations of five gamma-ray burst host galaxies at z < 0.5, taken using the Australia Telescope Compact Array. We determine tight constraints on the radio continuum flux of four sources (GRB hosts 060218, 060614, 020819 and 990712) and detect a fifth source, the host of GRB 031203, with a flux density Fν(5.50 GHz) = 216 ± 50 μJy. We discuss the star formation rates of all five sources. Our radio-derived star formation rates (and upper limits) are largely consistent with those derived from optical observations, suggesting either that there is little dust-obscured star formation in these sources, or that their starbursts are too young to have established representative radio continuum emission.
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, Stars -- Formation, Starbursts | ||||
Journal or Publication Title: | Monthly Notices of the Royal Astronomical Society: Letters | ||||
Publisher: | Wiley | ||||
ISSN: | 1745-3925 | ||||
Official Date: | 2010 | ||||
Dates: |
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Volume: | Vol.409 | ||||
Number: | No.1 | ||||
Page Range: | L74-L78 | ||||
DOI: | 10.1111/j.1745-3933.2010.00951.x | ||||
Status: | Peer Reviewed | ||||
Publication Status: | Published | ||||
Funder: | Science and Technology Facilities Council (Great Britain) (STFC) |
Data sourced from Thomson Reuters' Web of Knowledge
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