Low radio-derived star formation rates in z < 0.5 gamma-ray burst host galaxies
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 1745-3925Full text not available from this repository.
Official URL: http://dx.doi.org/10.1111/j.1745-3933.2010.00951.x
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|
|Funder:||Science and Technology Facilities Council (Great Britain) (STFC)|
Berger E. et al., 2003, ApJ, 588, 99
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