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

John Pazdser, Greg Burley, Michael J. Ireland, Gordon Robertson, Andrew Sheinis, Ross Zhelem

    Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

    10 Citations (Scopus)

    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.

    Original languageEnglish
    Title of host publicationGround-Based and Airborne Instrumentation for Astronomy VI
    EditorsLuc Simard, Christopher J. Evans, Hideki Takami
    PublisherSPIE
    ISBN (Electronic)9781510601956
    DOIs
    Publication statusPublished - 2016
    EventGround-Based and Airborne Instrumentation for Astronomy VI - Edinburgh, United Kingdom
    Duration: 26 Jun 201630 Jun 2016

    Publication series

    NameProceedings of SPIE - The International Society for Optical Engineering
    Volume9908
    ISSN (Print)0277-786X
    ISSN (Electronic)1996-756X

    Conference

    ConferenceGround-Based and Airborne Instrumentation for Astronomy VI
    Country/TerritoryUnited Kingdom
    CityEdinburgh
    Period26/06/1630/06/16

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