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

10 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
CountryUnited States


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


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