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LRG-BEASTS III : ground-based transmission spectrum of the gas giant orbiting the cool dwarf WASP-80
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Kirk, James, Wheatley, Peter J., Louden, Tom M., Skillen, I., King, George W., McCormac, J. J. and Irwin, P. G. J. (2018) LRG-BEASTS III : ground-based transmission spectrum of the gas giant orbiting the cool dwarf WASP-80. Monthly Notices of the Royal Astronomical Society, 474 (1). pp. 876-885. doi:10.1093/mnras/stx2826
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Official URL: https://doi.org/10.1093/mnras/stx2826
Abstract
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\,\AA. 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\,\AA.
| Item Type: | Journal Article | |||||||||
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| Subjects: | Q Science > QB Astronomy | |||||||||
| Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | |||||||||
| Library of Congress Subject Headings (LCSH): | Outer planets, Satellites | |||||||||
| Journal or Publication Title: | Monthly Notices of the Royal Astronomical Society | |||||||||
| Publisher: | Oxford University Press | |||||||||
| ISSN: | 0035-8711 | |||||||||
| Official Date: | 11 February 2018 | |||||||||
| Dates: |
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| Volume: | 474 | |||||||||
| Number: | 1 | |||||||||
| Page Range: | pp. 876-885 | |||||||||
| DOI: | 10.1093/mnras/stx2826 | |||||||||
| Status: | Peer Reviewed | |||||||||
| Publication Status: | Published | |||||||||
| Access rights to Published version: | Restricted or Subscription Access | |||||||||
| RIOXX Funder/Project Grant: |
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