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Proceedings Paper

OCTOCAM: a fast multi-channel imager and spectrograph proposed for the Gemini Observatory
Author(s): A. de Ugarte Postigo; P. Roming; C. C. Thöne; A. J. van der Horst; S. Pope; M. L. García Vargas; E. Sánchez-Blanco; M. Maldonado Medina; R. Content; F. Snik; R. Killough; G. Winters; K. Persson; S. Jeffers; A. Riva; A. Bianco; A. Zanutta
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Paper Abstract

OCTOCAM has been proposed to the Gemini Observatory as a workhorse imager and spectrograph that will fulfill the needs of a large number of research areas in the 2020s. It is based on the use of high-efficiency dichroics to divide the incoming light in eight different channels, four optical and four infrared, each optimized for its wavelength range. In its imaging mode, it will observe a field of 3'x3' simultaneously in g, r, i, z, Y, J, H, and KS bands. It will obtain long-slit spectroscopy covering the range from 3700 to 23500 Å with a resolution of 4000 and a slit length of 3 arcminutes. To avoid slit losses, the instrument it will be equipped with an atmospheric dispersion corrector for the complete spectral range. Thanks to the use of state of the art detectors, OCTOCAM will allow high time-resolution observations and will have negligible overheads in classical observing modes. It will be equipped with a unique integral field unit that will observe in the complete spectral range with an on-sky coverage of 9.7"x6.8", composed of 17 slitlets, 0.4" wide each. Finally, a state-of-the-art polarimetric unit will allow us to obtain simultaneous full Stokes spectropolarimetry of the range between 3700 and 22000 Å.

Paper Details

Date Published: 9 August 2016
PDF: 7 pages
Proc. SPIE 9908, Ground-based and Airborne Instrumentation for Astronomy VI, 990840 (9 August 2016); doi: 10.1117/12.2231862
Show Author Affiliations
A. de Ugarte Postigo, Instituto de Astrofísica de Andalucía (Spain)
Niels Bohr Institute (Denmark)
Univ. of Copenhagen (Denmark)
P. Roming, Southwest Research Institute (United States)
C. C. Thöne, Instituto de Astrofísica de Andalucía (Spain)
A. J. van der Horst, The George Washington Univ. (United States)
S. Pope, Southwest Research Institute (United States)
M. L. García Vargas, FRACTAL S.L.N.E (Spain)
E. Sánchez-Blanco, FRACTAL S.L.N.E (Spain)
M. Maldonado Medina, FRACTAL S.L.N.E (Spain)
R. Content, Australian Astronomical Observatory (Australia)
F. Snik, Leiden Observatory, Leiden Univ. (Netherlands)
R. Killough, Southwest Research Institute (United States)
G. Winters, Southwest Research Institute (United States)
K. Persson, Southwest Research Institute (United States)
S. Jeffers, Southwest Research Institute (United States)
A. Riva, INAF - Osservatorio Astrofisico di Torino (Italy)
A. Bianco, INAF - Osservatorio Astronomico di Brera (Italy)
A. Zanutta, INAF - Osservatorio Astronomico di Brera (Italy)

Published in SPIE Proceedings Vol. 9908:
Ground-based and Airborne Instrumentation for Astronomy VI
Christopher J. Evans; Luc Simard; Hideki Takami, Editor(s)

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