MAROON-X: A radial velocity spectrograph for the Gemini Observatory

Andreas Seifahrt*, Julian Stürmer, Jacob L. Bean, Christian Schwab

*Corresponding author for this work

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

    55 Citations (Scopus)


    MAROON-X is a red-optical, high precision radial velocity spectrograph currently nearing completion and undergoing extensive performance testing at the University of Chicago. The instrument is scheduled to be installed at Gemini North in the first quarter of 2019. MAROON-X will be the only RV spectrograph on a large telescope with full access by the entire US community. In these proceedings we discuss the latest addition of the red wavelength arm and the two science grade detector systems, as well as the design and construction of the telescope front end. We also present results from ongoing RV stability tests in the lab. First results indicate that MAROON-X can be calibrated at the sub-m s-1 level, and perhaps even much better than that using a simultaneous reference approach.

    Original languageEnglish
    Title of host publicationGround-based and Airborne Instrumentation for Astronomy VII
    EditorsChristopher J. Evans, Luc Simard, Hideki Takami
    Place of PublicationBellingham, Washington
    Number of pages10
    ISBN (Electronic)9781510619586
    ISBN (Print)9781510619579
    Publication statusPublished - 1 Jan 2018
    EventGround-based and Airborne Instrumentation for Astronomy VII 2018 - Austin, United States
    Duration: 10 Jun 201814 Jun 2018

    Publication series

    NameProceedings of SPIE
    ISSN (Print)0277-786X
    ISSN (Electronic)1996-756X


    ConferenceGround-based and Airborne Instrumentation for Astronomy VII 2018
    Country/TerritoryUnited States


    • active fiber guiding
    • CCD
    • echelle spectrograph
    • Fabry Perot etalon
    • Gemini
    • optical fibers
    • radial velocity
    • radial velocity stability


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