HyDRo: atmospheric retrieval of rocky exoplanets in thermal emission
نویسندگان
چکیده
ABSTRACT Emission spectroscopy is a promising technique to observe atmospheres of rocky exoplanets, probing both their chemistry and thermal profiles. We present hydro, an atmospheric retrieval framework for emission spectra exoplanets. hydro does not make prior assumptions about the background composition, can therefore be used interpret secondary with unknown compositions. use assess chemical constraints which placed on exoplanet using JWST. First, we identify best currently known candidates spectroscopic observations in JWST, finding >30 exoplanets whose will detectable by JWST/MIRI fewer than 10 eclipses at R ∼ 10. then consider required characterize three across ∼400–800 K equilibrium temperature range: Trappist-1 b, GJ 1132 LHS 3844 b. Considering range CO2- H2O-rich compositions, find that as few eight b or MIRI LRS able place important compositions atmospheres. This includes confident detections CO2 H2O case cloud-free CO2-rich besides ruling out bare rock scenario. Similarly, 30 allow CO2-H2O atmosphere. JWST observations, providing clues geochemical environments.
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ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society
سال: 2021
ISSN: ['0035-8711', '1365-8711', '1365-2966']
DOI: https://doi.org/10.1093/mnras/stab3612