The GTC exoplanet transit spectroscopy survey. VIII. Flat transmission spectrum for the warm gas giant WASP-80b

Journal article

Aims. We set out to study the atmosphere of WASP-80b, a warm inflated gas giant with an equilibrium temperature of ∼800 K, using ground-based transmission spectroscopy covering the spectral range from 520 to 910 nm. The observations allow us to probe the existence and abundance of K and Na in WASP-80b's atmosphere, existence of high-altitude clouds, and Rayleigh-scattering in the blue end of the spectrum. Methods. We observed two spectroscopic time series of WASP-80b transits with the OSIRIS ...

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Authors: Parviainen, H; Pallé, E; Chen, G; Nortmann, L; Murgas, F

• Publication status: Published
• Peer review status: Peer reviewed
• Publisher: EDP Sciences
• Journal: Astronomy and Astrophysics
• Volume: 609
• Article number: A33
• Publication date: 2018-01-05
• Acceptance date: 2017-09-06
• DOI: 10.1051/0004-6361/201731113
• EISSN: 1432-0746
• ISSN: 0004-6361
• Language: English
• Keywords: methods: statistical; planets and satellites: atmospheres; techniques: photometric; planets and satellites: individual: WASP-80b; techniques: spectroscopic; stars: individual: WASP-80