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A deep search for the host galaxies of GRBs with no detected optical afterglow

Published online by Cambridge University Press:  22 July 2013

A. Rossi ,
S. Klose ,
P. Ferrero ,
J. Greiner ,
A. Updike ,
D.A. Kann ,
T. Krühler  and
A. Nicuesa Guelbenzu
A. Rossi
Affiliation:
Thüringer Landessternwarte Tautenburg, Sternwarte 5, 07778 Tautenburg, Germany
S. Klose
Affiliation:
Thüringer Landessternwarte Tautenburg, Sternwarte 5, 07778 Tautenburg, Germany
P. Ferrero
Affiliation:
Instituto de Astrofísica de Canarias (IAC), 38200 La Laguna, Tenerife, Spain
J. Greiner
Affiliation:
Max-Planck-Institut für Extraterrestrische Physik, Giessenbachstraße, 85748 Garching, Germany
A. Updike
Affiliation:
Department of Physics and Astronomy, Dickinson College, Carlisle, PA 17013, USA
D.A. Kann
Affiliation:
Thüringer Landessternwarte Tautenburg, Sternwarte 5, 07778 Tautenburg, Germany Max-Planck-Institut für Extraterrestrische Physik, Giessenbachstraße, 85748 Garching, Germany
T. Krühler
Affiliation:
Dark Cosmology Centre, Niels Bohr Institute, Univ. of Copenhagen, Juliane Maries Vej 30, 2100 Købnhaven, Denmark
A. Nicuesa Guelbenzu
Affiliation:
Thüringer Landessternwarte Tautenburg, Sternwarte 5, 07778 Tautenburg, Germany
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Abstract

Long gamma-ray bursts (GRBs) pinpoint star-forming galaxies as they are linked to the deaths of massive stars. In most cases, these galaxies have been found to be blue, sub-luminous and of low-metallicity. However, our recent survey have demonstrated that a sizeable fraction of GRBs reside in massive, dusty and star-forming extremely red objects (EROs, (R − K)AB > 3.5). The most remarkable case is the host of GRB 080207, one of the reddest galaxies ever associated with a GRB. This discovery suggests that at least a fraction of GRB afterglows trace a subpopulation of massive starburst galaxies, which are markedly different from the most studied blue, sub-luminous and compact GRB host galaxies.

Type
Research Article
Information
European Astronomical Society Publications Series , Volume 61: Gamma-ray Bursts: 15 Years of GRB Afterglows – Progenitors, Environments and Host Galaxies from the Nearby to the Early Universe , 2013 , pp. 431 - 433
Copyright
© EAS, EDP Sciences 2013

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