Current measurements of planet population as a function of stellar mass show three seemingly contradictory signatures: close-in super-Earths are more prevalent around M dwarfs than FGK dwarfs; inner super-Earths are […]
super Earth
Posted inExoplanets, -moons, -comets, Habitable Zones, Status Report
The Dynamical Consequences Of A Super-Earth In The Solar System
Placing the architecture of the Solar System within the broader context of planetary architectures is one of the primary topics of interest within planetary science. Exoplanet discoveries have revealed a […]
Posted inAtmospheres, Climate, Weather, Exoplanets, -moons, -comets, Extinction events, Habitable Zones, Impact events, Press Release
About The Loss Of A Primordial Atmosphere Of Super-Earths By Planetesimal Impacts
We consider planets composed of water ice and rock, located far from a central star. In an earlier study, computing the growth of planets by continuous accretion, we found that […]
Posted inAtmospheres, Climate, Weather, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Habitable Zones, Imaging & Spectroscopy, Neptune, Status Report
Atmospheric Chemistry of Secondary and Hybrid Atmospheres of Super Earths and Sub-Neptunes
The atmospheres of small exoplanets likely derive from a combination of geochemical outgassing and primordial gases left over from formation.
Posted inBiosignatures & Paleobiology, Exoplanets, -moons, -comets, Status Report, Water/Hycean Worlds & Oceanography
Conclusive Evidence For A Population Of Water Worlds Around M-dwarfs Remains Elusive
The population of small, close-in exoplanets is bifurcated into super-Earths and sub-Neptunes. We calculate physically motivated mass-radius relations for sub-Neptunes, with rocky cores and H/He dominated atmospheres, accounting for their […]
Posted inAstrogeology, Biogeochemical Cycles & Geobiology, Exoplanets, -moons, -comets, Press Release
Rocky Histories: The Effect Of High Excitations On The Formation Of Rocky Planets
Rocky planets both in and outside of our solar system are observed to have a range of core-mass fractions (CMFs).
Posted inExoplanets, -moons, -comets, Habitable Zones, Press Release
Formation Of Super-Earths In Icy Dead Zones Around Low-mass Stars
While giant planet occurrence rates increase with stellar mass, occurrence rates of close-in super-Earths decrease.
Posted inExoplanets, -moons, -comets, Habitable Zones, Press Release
Two New Rocky Worlds Around An Ultra-cool Star TOI-4306
An international research team, with the participation of the University of Bern and the National Centre of Competence in Research (NCCR) PlanetS, discovered two “super-Earth” exoplanets. One is located at […]
Posted inExoplanets, -moons, -comets, Press Release
TOI-1452 b: SPIRou And TESS Reveal A Super-Earth In A Temperate Orbit Transiting An M4 Dwarf
Exploring the properties of exoplanets near or inside the radius valley provides insights on the transition from the rocky super-Earths to the larger, hydrogen-rich atmosphere mini-Neptunes. Here, we report the […]
Posted inExoplanets, -moons, -comets, Press Release
Chemical Diversity of Super-Earths As a Consequence of Formation
Recent observations of rocky super-Earths have revealed an apparent wider distribution of Fe/Mg ratios, or core to mantle ratios, than the planets in our Solar System. This study aims to […]