JWST NIRISS/SOSS data yield a transmission spectrum of the 23 Myr V1298 Tau c showing H2O absorption and an atmospheric metallicity of 14.8^{+56}_{-12} times solar, lower than mature planets of similar mass.
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8 Pith papers cite this work. Polarity classification is still indexing.
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2026 8representative citing papers
Young sub-Neptunes transition from core-powered bolometric escape to photoevaporative escape at smaller radii for lower-mass and more irradiated planets, with self-consistent simulations yielding combined mass-loss rates and analytic transition scalings.
The atmosphere of TOI-1130b shows high metallicity, low C/O, and elevated mean molecular weight consistent with ex-situ formation beyond the water ice line.
The transmission spectrum of AU Mic b is dominated by the transit light source effect from stellar spots, yielding only weak atmospheric constraints with a preferred scale height below 185 km.
A simulated 2.5-year multi-band photometric survey is projected to detect ~100 young transiting planets, sufficient to measure their occurrence rate to 5% precision and differentiate gas-dwarf versus water-world formation scenarios.
Clouds drive over 1000 K heating at depth in sub-Neptune atmospheres, producing molten mantle interfaces for most planets in the sample and increasing abundances of O2, SiH4, and SiO by at least 36 percent.
CHEOPS photometry improves radii for V1298 Tau b, c, and d, producing revised densities of 0.06-0.23 g cm^{-3} that indicate differential atmospheric evolution and no requirement for past dynamical excitation.
Hydrogen-silicate miscibility stores hydrogen in sub-Neptune interiors, resupplies escaping envelopes, delays contraction, matches young-planet observations, and enables a population test requiring 70-100 targets under 100 Myr.
citing papers explorer
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KRONOS I: The $1{-}2.8\mu$m JWST Transmission Spectrum of the 23 Myr V1298 Tau c
JWST NIRISS/SOSS data yield a transmission spectrum of the 23 Myr V1298 Tau c showing H2O absorption and an atmospheric metallicity of 14.8^{+56}_{-12} times solar, lower than mature planets of similar mass.
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Characterizing the bolometric-photoevaporative transition in young sub-Neptunes with radiation-hydrodynamic simulations
Young sub-Neptunes transition from core-powered bolometric escape to photoevaporative escape at smaller radii for lower-mass and more irradiated planets, with self-consistent simulations yielding combined mass-loss rates and analytic transition scalings.
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JWST unveils a high mean molecular weight atmosphere for mini-Neptune TOI-1130b: Evidence for formation beyond the water ice line
The atmosphere of TOI-1130b shows high metallicity, low C/O, and elevated mean molecular weight consistent with ex-situ formation beyond the water ice line.
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The HST/WFC3 Transmission Spectrum of AU Mic b Part I: An Atmosphere Obscured by Contamination and Systematics
The transmission spectrum of AU Mic b is dominated by the transit light source effect from stellar spots, yielding only weak atmospheric constraints with a preferred scale height below 185 km.
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Preparing for the Early eVolution Explorer: Detecting the Primordial, Transiting Exoplanet Population
A simulated 2.5-year multi-band photometric survey is projected to detect ~100 young transiting planets, sufficient to measure their occurrence rate to 5% precision and differentiate gas-dwarf versus water-world formation scenarios.
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Impact of Clouds on the Atmosphere-Mantle Interface of Sub-Neptunes
Clouds drive over 1000 K heating at depth in sub-Neptune atmospheres, producing molten mantle interfaces for most planets in the sample and increasing abundances of O2, SiH4, and SiO by at least 36 percent.
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CHEOPS observations of V1298 Tau: updated planetary densities and implications on the early evolution of the young system
CHEOPS photometry improves radii for V1298 Tau b, c, and d, producing revised densities of 0.06-0.23 g cm^{-3} that indicate differential atmospheric evolution and no requirement for past dynamical excitation.
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Testing the prevalence of hydrogen-silicate miscibility in young sub-Neptunes
Hydrogen-silicate miscibility stores hydrogen in sub-Neptune interiors, resupplies escaping envelopes, delays contraction, matches young-planet observations, and enables a population test requiring 70-100 targets under 100 Myr.