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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. 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 |
|---|---|
| Subjects: | Q Science > QB Astronomy |
| Divisions: | Faculty of 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-Blackwell Publishing Ltd. |
| ISSN: | 1745-3925 |
| Date: | 2010 |
| Volume: | Vol.409 |
| Number: | No.1 |
| Page Range: | L74-L78 |
| Identification Number: | 10.1111/j.1745-3933.2010.00951.x |
| Status: | Peer Reviewed |
| Publication Status: | Published |
| Funder: | Science and Technology Facilities Council (Great Britain) (STFC) |
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| URI: | http://wrap.warwick.ac.uk/id/eprint/40070 |
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