GROND - a 7-channel imager

J. Greiner , W. Bornemann , C. Clemens , M. Deuter , G. Hasinger , M. Honsberg , H. Huber , S. Huber

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M. Krauss T. Kr\"uhler A. K\"upc\"u Yolda\c{s} H. Mayer-Hasselwander B. Mican N. Primak F. Schrey I. Steiner G. Szokoly C.C. Th\"one A. Yolda\c{s} S. Klose U. Laux J. Winkler

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keywords grondchannelimagerafterglowsallowsaprilbandsburst

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We describe the construction of GROND, a 7-channel imager, primarily designed for rapid observations of gamma-ray burst afterglows. It allows simultaneous imaging in the Sloan g'r'i'z' and near-infrared $JHK$ bands. GROND was commissioned at the MPI/ESO 2.2m telescope at La Silla (Chile) in April 2007, and first results of its performance and calibration are presented.

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GROND - a 7-channel imager

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