JWST Transmission Spectroscopy of HD 209458b: A Supersolar Metallicity, a Very Low C/O, and No Evidence of CH4, HCN, or C2H2

JWST Transmission Spectroscopy of HD 209458b: A Supersolar Metallicity, a Very Low C/O, and No Evidence of CH4, HCN, or C2H2

We present the transmission spectrum of the original transiting hot Jupiter HD 209458b from 2.3 to 5.1 μ m as observed with the NIRCam instrument on the James Webb Space Telescope (JWST). Previous studies of HD 209458b’s atmosphere have given conflicting results on the abundance of H _2 O and the pr...

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Bibliográfalaš dieđut
Váldodahkkit: Qiao Xue, Jacob L. Bean, Michael Zhang, Luis Welbanks, Jonathan Lunine, Prune August
Materiálatiipa: Artihkal
Giella:English
Almmustuhtton: IOP Publishing 2024-01-01
Ráidu:The Astrophysical Journal Letters
Fáttát:
Exoplanet atmospheres
Exoplanet atmospheric composition
Exoplanet atmospheric structure
Liŋkkat:https://doi.org/10.3847/2041-8213/ad2682

Interneahtta

https://doi.org/10.3847/2041-8213/ad2682

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