LRG-BEASTS: Sodium in the Atmosphere of the Hot-Saturn WASP-21b
Lili Alderson - University of BristolMar 26, 2021
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We present the optical transmission spectrum of the highly inflated Saturn-mass exoplanet WASP-21b, using three transits obtained with the ACAM instrument on the William Herschel Telescope through the LRG-BEASTS survey (Low-Resolution Ground-Based Exoplanet Atmosphere Survey using Transmission Spectroscopy). Our transmission spectrum covers a wavelength range of 4635-9000Å, achieving an average ...