Results 121 to 130 of about 40,892 (232)
Numerical Performance of Correlated-k Distribution Method in Atmospheric Escape Simulation
The Astrophysical JournalAtmospheric escape is crucial to understanding the evolution of planets in and out of the solar system and to interpreting atmospheric observations. While hydrodynamic escape simulations have been actively developed incorporating detailed processes such ...
Yuichi Ito +2 more
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Blowin’ in the Nonisothermal Wind: Core-powered Mass Loss with Hydrodynamic Radiative Transfer
The Astrophysical JournalThe mass loss rates of planets undergoing core-powered escape are usually modeled using an isothermal Parker-type wind at the equilibrium temperature, T _eq .
William Misener +3 more
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The Astrophysical JournalExoplanets with short orbit periods reside very close to their host stars. They transition very rapidly between different sectors of the circumstellar space environment along their orbit, leading to large variations of the magnetic field in the vicinity ...
Ofer Cohen +6 more
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An Oxidation Gradient Straddling the Small Planet Radius Valley
The Astrophysical JournalWe present a population-level view of volatile gas species (H _2 , He, H _2 O, O _2 , CO, CO _2 , CH _4 ) distribution during the sub-Neptune to rocky planet transition, revealing in detail the dynamic nature of small planet atmospheric compositions. Our
Collin Cherubim +5 more
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A Large and Variable Leading Tail of Helium in a Hot Saturn Undergoing Runaway Inflation
The Astronomical JournalAtmospheric escape shapes the fate of exoplanets, with statistical evidence for transformative mass loss imprinted across the mass–radius–insolation distribution.
Michael Gully-Santiago +16 more
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The Astrophysical JournalTerrestrial planets currently in the habitable zone around M dwarfs are estimated to have been in runaway greenhouse conditions for up to ∼1 Gyr due to the long-term pre-main-sequence phase of M dwarfs.
Yo Kawamura +7 more
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Water Evolution and Inventories of Super-Earths Orbiting Late M Dwarfs
The Astrophysical JournalSuper-Earths orbiting M dwarf stars may be the most common habitable planets in the Universe. However, their habitability is threatened by intense irradiation from their host stars, which drives the escape of water to space and can lead to surface ...
Keavin Moore +3 more
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Can Isotopologues Be Used as Biosignature Gases in Exoplanet Atmospheres? [PDF]
Life (Basel), 2023 Glidden A +3 more
europepmc +1 more source
Coupling the Secular Dynamical and Atmospheric Evolution of Close-in Exoplanets
Cette thèse plonge au cœur de la formation énigmatique du désert des Neptune chauds, une région peu peuplée de la démographie des exoplanètes, en explorant les processus qui façonnent les exoplanètes proches de leur étoile. Au centre de cette recherche se trouve l’interaction entre l’évaporation atmosphérique et la migration orbitale, deux mécanismes ...
openaire +2 more sources
The Astrophysical JournalOver the past decade, observations of evaporating exoplanets have become increasingly common, driven by the discovery of the near-infrared helium-triplet line as a powerful probe of atmospheric escape.
Patrick McCreery +4 more
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