LRG-BEASTS III : ground-based transmission spectrum of the gas giant orbiting the cool dwarf WASP-80
| Autor: | James Kirk, James McCormac, Peter J. Wheatley, George W. King, I. Skillen, Patrick G. J. Irwin, Tom Louden |
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| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Gas giant
FOS: Physical sciences Astrophysics Astrophysics::Cosmology and Extragalactic Astrophysics 01 natural sciences Spectral line Atmosphere Planet 0103 physical sciences Hot Jupiter William Herschel Telescope Astrophysics::Solar and Stellar Astrophysics 010303 astronomy & astrophysics QB Earth and Planetary Astrophysics (astro-ph.EP) Physics 010308 nuclear & particles physics Astrophysics::Instrumentation and Methods for Astrophysics Astronomy Astronomy and Astrophysics Exoplanet Grism 13. Climate action Space and Planetary Science Astrophysics::Earth and Planetary Astrophysics Astrophysics - Earth and Planetary Astrophysics |
| ISSN: | 0035-8711 |
| Popis: | 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 LRG-BEASTS 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 4640-8840A. 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 100A. Comment: 11 pages, 9 figures. Accepted for publication in MNRAS |
| Databáze: | OpenAIRE |
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