15 July 2010 OCTOCAM: a fast multichannel imager and spectrograph for the 10.4m GTC
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Proceedings Volume 7735, Ground-based and Airborne Instrumentation for Astronomy III; 77351F (2010); doi: 10.1117/12.856912
Event: SPIE Astronomical Telescopes + Instrumentation, 2010, San Diego, California, United States
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 A with a resolution of 700 - 1,000 (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 Spanò, Marco Riva, Ovidio Rabaza, Vincenzo De Caprio, Ronan Cunniffe, Petr Kubánek, Alberto Riva, Martin Jelinek, Michael I. Andersen, Alberto J. Castro-Tirado, Filippo M. Zerbi, Alberto Fernández-Soto, "OCTOCAM: a fast multichannel imager and spectrograph for the 10.4m GTC", Proc. SPIE 7735, Ground-based and Airborne Instrumentation for Astronomy III, 77351F (15 July 2010); doi: 10.1117/12.856912; https://doi.org/10.1117/12.856912
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KEYWORDS
Imaging spectroscopy

Ultraviolet radiation

Sensors

Mirrors

Cameras

Spectroscopes

Near infrared

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