GRB host galaxies: An unbiased sample

Details GRB host galaxies: An unbiased sample GRB host galaxies: An unbiased sample

Apr 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011adspr..47.1416j&link_type=abstract

Advances in Space Research, Volume 47, Issue 8, p. 1416-1420.

Physics

2

Scientific paper

We describe the current status and recent results from our Swift/VLT legacy survey, a VLT Large Programme aimed at characterizing the host galaxies of a homogeneously selected sub-sample of Swift GRBs. The immediate goals are to determine the host luminosity function, study the effects of reddening, determine the fraction of Lyα emitters in the hosts, and obtain redshifts for targets without a reported one. The main effort so far has been the definition of a very carefully selected sample, obeying strict and well-defined criteria: 68 targets in total. Among the preliminary results is a large optical detection rate, the lack of extremely red objects (only one possible case in the sample) and an update of the Swift GRB redshift distribution with ˜2.0.

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