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arxiv 1807.00557 v1 pith:RWTDE3UC submitted 2018-07-02 astro-ph.IM

First light with HiPERCAM on the GTC

Vikram Dhillon , Simon Dixon , Trevor Gamble , Paul Kerry , Stuart Littlefair , Steven Parsons , Thomas Marsh , Naidu Bezawada
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Martin Black Xiaofeng Gao David Henry David Lunney Christopher Miller Marc Dubbeldam Timothy Morris James Osborn Richard Wilson Jorge Casares Teo Munoz-Darias Enric Palle Pablo Rodriguez-Gil Tariq Shahbaz Antonio de Ugarte Postigo
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keywords hipercamfirstimaginglighttargetsallowingas-builtbeamsplitters
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HiPERCAM is a quintuple-beam imager that saw first light on the 4.2m William Herschel Telescope (WHT) in October 2017 and on the 10.4m Gran Telescopio Canarias (GTC) in February 2018. The instrument uses re-imaging optics and 4 dichroic beamsplitters to record ugriz (300-1000nm) images simultaneously on its five CCD cameras. The detectors in HiPERCAM are frame-transfer devices cooled thermo-electrically to -90degC, thereby allowing both long-exposure, deep imaging of faint targets, as well as high-speed (over 1000 windowed frames per second) imaging of rapidly varying targets. In this paper, we report on the as-built design of HiPERCAM, its first-light performance on the GTC, and some of the planned future enhancements.

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