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Proceedings Paper

The Gemini High-Resolution Optical SpecTrograph (GHOST) bench spectrograph optical design
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Paper Abstract

Gemini High-Resolution Optical SpecTrograph (GHOST) is a fiber-fed spectrograph being developed for the Gemini telescope. GHOST is a white pupil échelle spectrograph with high efficiency and a broad continuous wavelength coverage (363-1000nm) with R>50,000 in two-object mode and >75,000 in single-object mode. The design incorporates a novel zero-Petzval sum white pupil relay to eliminate grating aberrations at the cross-dispersers. Cameras are based on non-achromatic designs with tilted detectors to eliminate the need for exotic glasses. This paper outlines the optical design of the bench-mounted spectrograph and the predicted spectrograph resolution and efficiency for the spectrograph.

Paper Details

Date Published: 9 August 2016
PDF: 11 pages
Proc. SPIE 9908, Ground-based and Airborne Instrumentation for Astronomy VI, 99087F (9 August 2016); doi: 10.1117/12.2234366
Show Author Affiliations
John Pazder, NRC - Herzberg Astronomy & Astrophysics (Canada)
Greg Burley, NRC - Herzberg Astronomy & Astrophysics (Canada)
Michael J. Ireland, The Australian National Univ. (Australia)
Gordon Robertson, Australian Astronomical Observatory (Australia)
The Univ. of Sydney (Australia)
Andrew Sheinis, Australian Astronomical Observatory (Australia)
Ross Zhelem, Australian Astronomical Observatory (Australia)

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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