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arXiv · 1009.1830

OCTOCAM: A fast multichannel imager and spectrograph for the 10.4m GTC

Antonio de Ugarte Postigo·Javier Gorosabel·Paolo Spano·Marco Riva·Ovidio Rabaza·Vincenzo de Caprio·Ronan Cuniffe·Petr Kubanek·Alberto Riva·Martin Jelinek·Michael I. Andersen·Alberto J. Castro-Tirado·Filippo M. Zerbi·Alberto Fernandez-Soto
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Abstract

OCTOCAM is a multi-channel imager and spectrograph that has been proposed for the 10.4m GTC telescope. It will use dichroics to split the incoming light to produce simultaneous observations in 8 different bands, ranging from the ultraviolet to the near-infrared. The imaging mode will have a field of view of 2' x 2' in u, g, r, i, z, J, H and Ks bands, whereas the long-slit spectroscopic mode will cover the complete range from 4,000 to 23,000 {\AA} with a resolution of 700 - 1,700 (depending on the arm and slit width). An additional mode, using an image slicer, will deliver a spectral resolution of over 3,000. As a further feature, it will use state of the art detectors to reach high readout speeds of the order of tens of milliseconds. In this way, OCTOCAM will be occupying a region of the time resolution - spectral resolution - spectral coverage diagram that is not covered by a single instrument in any other observatory, with an exceptional sensitivity.

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Antonio de Ugarte Postigo, Javier Gorosabel, Paolo Spano, Marco Riva, Ovidio Rabaza, Vincenzo de Caprio, Ronan Cuniffe, Petr Kubanek, Alberto Riva, Martin Jelinek, Michael I. Andersen, Alberto J. Castro-Tirado, Filippo M. Zerbi, Alberto Fernandez-Soto. 2010-09-09. OCTOCAM: A fast multichannel imager and spectrograph for the 10.4m GTC. https://doi.org/10.1117/12.856912

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