Abstract
We have obtainedK-band imaging observations of Gamma-Ray Burst (GRB) host galaxies with the near-infrared spectro-imager ISAAC installed on the Very Large Telescope at Paranal (Chile). The derivedK magnitudes, combined with other photometric data taken from the literature, are used to investigate theR-K colors of GRB hosts. We do not find any extremely reddened starbursts in our sample, despite the capability of GRBs to trace star formation even in dusty regions. The observedR-K colors are on the contrary typical of irregular and spiral blue galaxies at high redshift.
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Le Floc’h, E., Mirabel, I.F. & Duc, P.A. Preliminary results on VLT K-band imaging observations of GRB host galaxies. J Astrophys Astron 23, 119–122 (2002). https://doi.org/10.1007/BF02702475
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DOI: https://doi.org/10.1007/BF02702475