Preliminary results on VLT K-band imaging observations of GRB host galaxies |
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Authors: | E Le Floc’h I F Mirabel P -A Duc |
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Institution: | (1) CEA-Saclay, Service d’Astrophysique, France |
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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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Keywords: | Galaxies: evolution high-redshift dust Gamma-ray Bursts |
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