![Vertical velocity and condensate cross-sections in (x,z) taken in the middle of the y-domain for the adiabatic simulation initialized on the moist adiabat. The top row shows the vertical velocity in [m/s] at different times throughout the CM1 simulation. The bottom row shows the condensate mixing ratio in [g/kg] at different times throughout the CM1 simulation. The vertical velocity cross-sections show clear convective inhibition in the lower atmosphere in all time steps. The corresponding condensate mixing ratio show a condensate formation nearly in the whole domain, but re-evaporation occurs at the boundary between the stable and convection regions. -- astro-ph.EP](https://i0.wp.com/astrobiology.com/wp-content/uploads/2024/10/3D-Modeling-of-Moist-Convective-Inhibition.png?resize=1200%2C718&ssl=1)
Many planets have hydrogen-dominated atmospheres, including sub-Neptune exoplanets, recently formed planets with primordial atmospheres, and the Solar System’s giant planets. Atmospheric convection behaves differently in hydrogen-rich atmospheres compared to higher […]
gas giant
Posted inAstrogeology, Astronomy & Telescopes, Atmospheres, Climate, Weather, Exoplanets, -moons, -comets, Gas Giants, Imaging & Spectroscopy, Press Release
Astronomers Catch A Glimpse Of A Uniquely Inflated And Asymmetric Exoplanet
Astronomers from the University of Arizona, along with an international group of researchers, observed the atmosphere of a hot and uniquely inflated exoplanet using NASA’s James Webb Space Telescope. The […]
Posted inAstrochemistry, Astronomy & Telescopes, Atmospheres, Climate, Weather, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Gas Giants, Jupiter, Saturn, Status Report, Water/Hycean Worlds & Oceanography
A Photochemical PHO Network For Hydrogen-dominated Exoplanet Atmospheres
Due to the detection of phosphine PH3 in the Solar System gas giants Jupiter and Saturn, PH3 has long been suggested to be detectable in exosolar substellar atmospheres too. However, […]
Posted inAstrochemistry, Astrogeology, Atmospheres, Climate, Weather, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Gas Giants, Imaging & Spectroscopy, Status Report
Warm Jupiters Around M-dwarfs are Great Opportunities for Extensive Chemical, Cloud and Haze Characterisation with JWST
The population of short-period giant exoplanets around M-dwarf stars is slowly rising. These planets present an extraordinary opportunity for atmospheric characterisation and defy our current understanding of planetary formation.
Posted inAstrogeology, Exoplanets, -moons, -comets, Gas Giants, Press Release
The Key To Rapid Planet Formation
A team of LMU researchers has developed a new model to explain the formation of giant planets such as Jupiter, which furnishes deeper insights into the processes of planet formation […]
Posted inAstronomy & Telescopes, Exoplanets, -moons, -comets, Gas Giants, Imaging & Spectroscopy, Status Report
Investing in the Unrivaled Potential of Wide-Separation Sub-Jupiter Exoplanet Detection and Characterisation with JWST — Strategic Exoplanet Initiatives with HST and JWST White Paper
We advocate for a large scale imaging survey of nearby young moving groups and star-forming regions to directly detect exoplanets over an unexplored range of masses, ages and orbits. Discovered […]
Posted inAstronomy & Telescopes, Atmospheres, Climate, Weather, Brown Dwarfs, Exoplanets, -moons, -comets, Gas Giants, Imaging & Spectroscopy, Jupiter, Press Release
Webb Images Cold Exoplanet Epsilon Indi Ab 12 Light-Years Away
If alien astronomers in a nearby star system had a telescope like NASA’s James Webb Space Telescope, and they pointed it toward our solar system, then Jupiter might look very […]
Posted inAstronomy & Telescopes, Atmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Gas Giants, Imaging & Spectroscopy, Press Release
A Nearby Exoplanet Has Trace Amounts Of Hydrogen Sulfide
An exoplanet infamous for its deadly weather has been hiding another bizarre feature—it reeks of rotten eggs, according to a new Johns Hopkins University study of data from the James […]
Posted inAstronomy & Telescopes, Atmospheres, Climate, Weather, Exoplanets, -moons, -comets, Gas Giants, Status Report
TOI-2374 b and TOI-3071 b: Two Metal-rich Sub-Saturns Well Within The Neptunian Desert
We report the discovery of two transiting planets detected by the Transiting Exoplanet Survey Satellite (TESS), TOI-2374 b and TOI-3071 b, orbiting a K5V and an F8V star, respectively, with […]
Posted inAstrogeology, Exoplanets, -moons, -comets, Gas Giants, Jupiter, Saturn, Status Report
The Solar System Could Have Formed in a Low-viscosity Disc: A Dynamical Study From Giant Planet Migration to the Nice Model
In the context of low-viscosity protoplanetary discs (PPDs), the formation scenarios of the Solar System should be revisited. In particular, the Jupiter-Saturn pair has been shown to lock in the […]