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A green astro-comb for Earth-like exoplanet searches

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Abstract

Our astro-comb, providing >7000 lines spaced by 16 GHz from 500-620 nm, has been deployed at TNG telescope as a wavelength calibrator for HARPS-N spectrograph. It provides sub-10 cm/s calibration accuracy required for exo-Earth searches.

© 2014 Optical Society of America

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