DOI:
10.1088/0004-637X/789/1/45
Authors:
Nicuesa Guelbenzu A., Klose S., Michałowski M.J., Savaglio S., Kann D.A., Rossi A., Hunt L.K., Gorosabel J., Greiner J., McKenzie M.R.G., Palazzi E., Schmidl S.
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. We detect the galaxy in the 5.5 GHz band with an integrated flux density of F ν = 43 ± 11 μJy, corresponding to an unobscured star-formation rate of about 24 M ⊙ yr-1, 40 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 timescale. © 2014. The American Astronomical Society. All rights reserved.
URL:
https://ui.adsabs.harvard.edu/#abs/2014ApJ...789...45N/abstract
Keywords:
gamma-ray burst; individual (GRB 071227)