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arxiv: 2210.06563 · v1 · pith:3TAJEFOAnew · submitted 2022-10-12 · 🌌 astro-ph.IM · astro-ph.EP

MAROON-X: The first two years of EPRVs from Gemini North

classification 🌌 astro-ph.IM astro-ph.EP
keywords maroon-xgeminiinstrumentnorthfirstlevelobservationsperformance
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MAROON-X is a fiber-fed, optical EPRV spectrograph at the 8-m Gemini North Telescope on Mauna Kea, Hawai'i. MAROON-X was commissioned as a visiting instrument in December 2019 and is in regular use since May 2020. Originally designed for RV observations of M-dwarfs, the instrument is used for a broad range of exoplanet and stellar science cases and has transitioned to be the second-most requested instrument on Gemini North over a number of semesters. We report here on the first two years of operations and radial velocity observations. MAROON-X regularly achieves sub-m/s RV performance on sky with a short-term instrumental noise floor at the 30 cm/s level. We will discuss various technical aspects in achieving this level of precision and how to further improve long-term performance

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