Astronomy and Astrophysics – Astrophysics
Scientific paper
May 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005assl..329p..75t&link_type=abstract
Starbursts: From 30 Doradus to Lyman Break Galaxies, Held in Cambridge, UK, 6-10 September 2004. Edited by R. de Grijs and R.M.
Astronomy and Astrophysics
Astrophysics
Scientific paper
Since long-duration GRBs are associated with the deaths of massive stars, they are also indicators of star-formation activity. Advantages they have over conventional methods are that they are extremely bright, and hence visible to high redshifts, and detectable in gamma-rays through very high columns of dust and gas. If they are unbiased tracers of star-formation activity, then the GRB host galaxies should contain all populations of star-forming galaxies, in proportion to their contribution to the global star-formation rate. In particular, if a high proportion of star formation occurs in obscured mode, then a similar proportion of GRBs and their hosts should also show signs of dusty environments. We describe progress towards testing this prediction.
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