Performance of HAWK-I: the new high acuity wide-field K-band imager

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; F. Selman

doi:10.1117/12.787009

9 July 2008 Performance of HAWK-I: the new high acuity wide-field K-band imager

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, F. Selman

Author Affiliations +

Proceedings Volume 7014, Ground-based and Airborne Instrumentation for Astronomy II; 70140Q (2008) https://doi.org/10.1117/12.787009
Event: SPIE Astronomical Telescopes + Instrumentation, 2008, Marseille, France

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.

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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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