Matches in SemOpenAlex for { <https://semopenalex.org/work/W3201390806> ?p ?o ?g. }
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- W3201390806 abstract "Recent analysis of the planet K2-18 b has shown the presence of water vapour in its atmosphere. While the H2O detection is significant, the Hubble Space Telescope (HST) WFC3 spectrum suggests three possible solutions of very different nature which can equally match the data. The three solutions are a primary cloudy atmosphere with traces of water vapour (cloudy sub-Neptune), a secondary atmosphere with a substantial amount (up to 50% Volume Mixing Ratio) of H2O (icy/water world) and/or an undetectable gas such as N2 (super-Earth). Additionally, the atmospheric pressure and the possible presence of a liquid/solid surface cannot be investigated with currently available observations. In this paper we used the best fit parameters from Tsiaras et al. (Nat. Astron. 3, 1086, 2019) to build James Webb Space Telescope (JWST) and Ariel simulations of the three scenarios. We have investigated 18 retrieval cases, which encompass the three scenarios and different observational strategies with the two observatories. Retrieval results show that twenty combined transits should be enough for the Ariel mission to disentangle the three scenarios, while JWST would require only two transits if combining NIRISS and NIRSpec data. This makes K2-18 b an ideal target for atmospheric follow-ups by both facilities and highlights the capabilities of the next generation of space-based infrared observatories to provide a complete picture of low mass planets." @default.
- W3201390806 created "2021-09-27" @default.
- W3201390806 creator A5017695033 @default.
- W3201390806 creator A5022203760 @default.
- W3201390806 creator A5045010357 @default.
- W3201390806 creator A5082945960 @default.
- W3201390806 creator A5085986998 @default.
- W3201390806 creator A5090033636 @default.
- W3201390806 date "2021-09-14" @default.
- W3201390806 modified "2023-09-27" @default.
- W3201390806 title "Disentangling atmospheric compositions of K2-18 b with next generation facilities" @default.
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