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Another short-burst host galaxy with an optically obscured high star formation rate: The case of GRB 071227
- Publication Year :
- 2014
-
Abstract
- We report on radio continuum observations of the host galaxy of the short gamma-ray burst 071227 (z=0.381) with the Australia Telescope Compact Array (ATCA). We detect the galaxy in the 5.5 GHz band with an integrated flux density of Fnu = 43 +/- 11 microJy, corresponding to an unobscured star-formation rate (SFR) of about 24 Msun/yr, forty times higher than what was found from optical emission lines. Among the ~30 well-identified and studied host galaxies of short bursts this is the third case where the host is found to undergo an episode of intense star formation. This suggests that a fraction of all short-burst progenitors hosted in star-forming galaxies could be physically related to recent star formation activity, implying a relatively short merger time scale.<br />Comment: 6 pages, ApJ, accepted for publication
Details
- Database :
- arXiv
- Publication Type :
- Report
- Accession number :
- edsarx.1405.5366
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1088/0004-637X/789/1/45