期刊
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
卷 474, 期 1, 页码 876-885出版社
OXFORD UNIV PRESS
DOI: 10.1093/mnras/stx2826
关键词
methods: observational; techniques: spectroscopic; planets and satellites: atmospheres; planets and satellites: individual: WASP-80b
资金
- Science and Technology Facilities Council (STFC)
- STFC [ST/P000495/1]
- STFC [ST/K00106X/1, 1622607, ST/N000919/1, ST/P000495/1, ST/L000733/1] Funding Source: UKRI
- Science and Technology Facilities Council [ST/P000495/1, ST/L000733/1, ST/N000919/1, ST/K00106X/1, 1226157, 1622607] Funding Source: researchfish
We have performed ground-based transmission spectroscopy of the hot Jupiter orbiting the cool dwarf WASP-80 using the ACAM instrument on the William Herschel Telescope (WHT) as part of the Low-Resolution Ground-Based Exoplanet Atmosphere Survey using Transmission Spectroscopy programme. This is the third paper of a ground-based transmission spectroscopy survey of hot Jupiters using low-resolution grism spectrographs. We observed two transits of the planet and have constructed transmission spectra spanning a wavelength range of 4640-8840 angstrom. Our transmission spectrum is inconsistent with a previously claimed detection of potassium in WASP-80b's atmosphere, and is instead most consistent with a haze. We also do not see evidence for sodium absorption at a resolution of 100 angstrom.
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