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Proceedings Paper

OCTOCAM: a fast multichannel imager and spectrograph for the 10.4m GTC
Author(s): 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
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Paper 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.

Paper Details

Date Published: 15 July 2010
PDF: 11 pages
Proc. SPIE 7735, Ground-based and Airborne Instrumentation for Astronomy III, 77351F (15 July 2010); doi: 10.1117/12.856912
Show Author Affiliations
Antonio de Ugarte Postigo, INAF, Osservatorio Astronomico di Brera (Italy)
Javier Gorosabel, Instituto de Astrofísica de Andalucía, CSIC (Spain)
Paolo Spanò, INAF, Osservatorio Astronomico di Brera (Italy)
Marco Riva, INAF, Osservatorio Astronomico di Brera (Italy)
Ovidio Rabaza, Instituto de Astrofísica de Andalucía, CSIC (Spain)
Vincenzo De Caprio, INAF-IASF (Italy)
Ronan Cunniffe, Instituto de Astrofísica de Andalucía, CSIC (Spain)
Petr Kubánek, Instituto de Astrofísica de Andalucía, CSIC (Spain)
Univ. of Valencia (Spain)
Alberto Riva, INAF, Osservatorio Astronomico di Torino (Italy)
Martin Jelinek, Instituto de Astrofísica de Andalucía, CSIC (Spain)
Michael I. Andersen, Niels Bohr Institute, Univ. of Copenhagen (Denmark)
Alberto J. Castro-Tirado, Instituto de Astrofísica de Andalucía, CSIC (Spain)
Filippo M. Zerbi, INAF, Osservatorio Astronomico di Brera (Italy)
European Southern Observatory (Germany)
Alberto Fernández-Soto, Instituto de Fisica de Cantabria (Spain)


Published in SPIE Proceedings Vol. 7735:
Ground-based and Airborne Instrumentation for Astronomy III
Ian S. McLean; Suzanne K. Ramsay; Hideki Takami, Editor(s)

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