Planets with orbital periods shorter than 1 day are rare and have formation histories that are not completely understood. Small (Rp<2R⊕) ultra-short-period (USP) planets are highly irradiated, probably have rocky […]
super Earth
Posted inAstrogeology, Atmospheres, Climate, Weather, Exoplanets, -moons, -comets, Gas Giants, Jupiter, Saturn, Status Report
Earths Are Not Super-Earths, Saturns Are Not Jupiters: Imprints Of Pressure-bump Planet Formation On Planetary Architectures
In protoplanetary disks, sufficiently massive planets excite pressure bumps, which can then be preferred locations for forming new planet cores. We discuss how this loop may affect the architecture of […]
Posted inAstrogeology, Atmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Exoplanets, -moons, -comets, Status Report
A Radius Valley Between Migrated Steam Worlds And Evaporated Rocky Cores
The radius valley (or gap) in the observed distribution of exoplanet radii, which separates smaller super-Earths from larger sub-Neptunes, is a key feature that theoretical models must explain. Conventionally, it […]
Posted inBiogeochemical Cycles & Geobiology, Exoplanets, -moons, -comets, Habitable Zones, Icy Worlds, Press Release, Water/Hycean Worlds & Oceanography
Extended Habitability Of Exoplanets Due To Subglacial Water
Professor Amri Wandel, from Hebrew University of Jerusalem, has unveiled research that promises to redefine our comprehension of habitable exoplanets. In a recent study published in the Astronomical Journal, Professor […]
Posted inAstronomy & Telescopes, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Status Report
VaTEST III: Validation Of 8 Potential Super-Earths From TESS Data
NASA’s all-sky survey mission, the Transiting Exoplanet Survey Satellite (TESS) is specifically designed to detect transiting exoplanets orbiting bright stars.
Posted inAstronomy & Telescopes, Atmospheres, Climate, Weather, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Status Report
Double Trouble: Two Transits of the Super-Earth GJ 1132 b Observed with JWST NIRSpec G395H
The search for rocky planet atmospheres with JWST has focused on planets transiting M dwarfs. Such planets have favorable planet-to-star size ratios, enhancing the amplitude of atmospheric features. Since the […]
Posted inAI - Data - Apps - Cybernetics, Atmospheres, Climate, Weather, Exoplanets, -moons, -comets, Status Report
Modelling Non-Condensing Compositional Convection for Applications to Super-Earth and Sub-Neptune Atmospheres
Compositional convection is atmospheric mixing driven by density variations caused by compositional gradients. Previous studies have suggested that compositional gradients of atmospheric trace species within planetary atmospheres can impact convection […]
Posted inExoplanets, -moons, -comets, Status Report
Super-Earth LHS3844b Is Tidally Locked
Short period exoplanets on circular orbits are thought to be tidally locked into synchronous rotation. If tidally locked, these planets must possess permanent day- and nightsides, with extreme irradiation on […]
Posted inAstronomy & Telescopes, Atmospheres, Climate, Weather, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Habitable Zones, Imaging & Spectroscopy, Press Release
Webb Discovers Methane, Carbon Dioxide in Atmosphere of K2-18 b
A new investigation with NASA’s James Webb Space Telescope into K2-18 b, an exoplanet 8.6 times as massive as Earth, has revealed the presence of carbon-bearing molecules including methane and […]
Posted inExoplanets, -moons, -comets, Status Report, TRAPPIST-1
Tidal Interactions Shape Period Ratios In Planetary Systems With Three-body Resonant Chains
These last years several Systems with Tightly packed Inner Planets in the super-Earth mass regime have been discovered harboring chains of resonances. It is generally believed that planet pairs get […]