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Test Results And Operating Configuration Of The Calibration Unit For The Near-Infrared Spectropolarimeter Spirou

GROUND-BASED AND AIRBORNE INSTRUMENTATION FOR ASTRONOMY VII(2018)

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Abstract
SPIRou is a new near-infrared echelle spectropolarimeter and high precision radial velocity instrument, implemented at the 3.6m Canada-France Hawaii Telescope (CFHT - Mauna Kea) in early 2018. It aims at detecting and characterizing Earth-like planets around M dwarfs and studying stellar and planetary formation in the presence of stellar magnetic field. The calibration unit, with its radial-velocity reference module, is essential to the short- and long-term precision at the level of 1 m/s. We describe the final calibration unit that has been installed.We give technical results such as thermal background level, lamps flux level, lamps stability, and report some technical issues with their solution.
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Key words
calibration unit, near infrared, spectrograph, radial velocity, Fabry-Perot, spectropolarimeter
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