Cool Gaseous Exoplanets: surveying the new frontier with Twinkle
arxiv(2024)
摘要
Cool gaseous exoplanets (1.75 R_⊕ < R_p < 3 R_J, 200
K 5σ
significance. We find that an injected mass-metallicity trend is
well-recovered, demonstrating Twinkle's ability to elucidate this fundamental
relationship into cool regime. We also find Twinkle will be able to detect
cloud layers at 3σ or greater in all cool gaseous planets for clouds at
≤ 10 Pa pressure level, but will be insensitive to clouds deeper than
10^4 Pa in all cases. With these results we demonstrate the capability of the
Twinkle mission to greatly expand the current knowledge of cool gaseous
planets, enabling key insights and constraints to be obtained for this
poorly-charted region of exoplanet parameter space.
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