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

分类： 天文学 >> 天文学 提交时间： 2023-02-19

Andreas Seifahrt Jacob L. Bean David Kasper Julian Stürmer Madison Brady Robert Liu Mathias Zechmeister Gudmundur Stefansson Ben Montet John White Eduardo Tapia Teo Mocnik Siyi Xu Christian Schwab

摘要： 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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