Optical emission from GRB 050709 : a short/hard GRB in a star-forming galaxy

  title={Optical emission from GRB 050709 : a short/hard GRB in a star-forming galaxy},
  author={Stefano Covino and Daniele B. Malesani and Gian Luca Israel and Paolo D’Avanzo and Lucio Angelo Antonelli and Guido L. Chincarini and Dino Fugazza and Maria Laura Conciatore and Massimo Della Valle and Fabrizio Fiore and Dafne Guetta and Kevin Hurley and Davide Lazzati and Luigi Stella and Gianpiero Tagliaferri and Mario Vietri and Sergio Campana and David N. Burrows and Valerio D’Elia and Ph. Filliatre and N. C. Gehrels and Paolo Goldoni and A. Melandri and Sandro Mereghetti and Igor Felix Mirabel and Alberto Moretti and J A Nousek and P. T. O’Brien and Leonardo J. Pellizza and Rosalba Perna and Silvia Piranomonte and Patrizia Romano and F. Zerbi},
  journal={Astronomy and Astrophysics},
We present optical observations of the short/hard gamma-ray burst GRB 050709, the first such event with an identified optical counterpart. The object is coincident with a weak X-ray source and is located inside a galaxy at redshift $z = 0.1606 \pm 0.0002$. Multiband photometry allowed us to study the broad-band spectral energy distribution.
Late-time monitoring places strong limits on any supernova simultaneous with the GRB. The host galaxy is not of early type. Spectra show that the dominant… 

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