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9 July 2008 Performance of HAWK-I: the new high acuity wide-field K-band imager
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Abstract
HAWK-I is the newly commissioned High Acuity Wide-field K-band Imager at the ESO Very Large Telescope. It is a 0.9-2.5 micron imager with a field of view of 7.5×7.5 arcmin sampled at 106 mas with four Hawaii2RG detectors. It has a full reflective design that was optimised for image quality and throughput.We present an overview of its performance as measured during the commissioning and first science runs. In particular, we describe a detector read-out mode that allows us to increase the useful dynamic range of the detector, and a distortion calibration resulting in <5mas relative astrometry across the field.
© (2008) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
M. Kissler-Patig, N. Ageorges, C. Alves de Oliveira, L. R. Bedin, E. Bendek, M. Casali, R. Dorn, R. Esteves, G. Finger, D. Gojak, Y. Jung, M. Kiekebusch, A. Moorwood, J.-L. Lizon, M. Petr-Gotzens, J. F. Pirard, J. Pritchard, and F. Selman "Performance of HAWK-I: the new high acuity wide-field K-band imager", Proc. SPIE 7014, Ground-based and Airborne Instrumentation for Astronomy II, 70140Q (9 July 2008); https://doi.org/10.1117/12.787009
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