Theoretical frameworks for reflection and emission spectroscopy of exoplanet surfaces are becoming increasingly important for the characterization of rocky exoplanets, especially with the rapid growth of the detected exoplanet population […]
rocky exoplanet
Posted inAtmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Habitable Zones, Status Report, Venus, Water/Hycean Worlds & Oceanography
Retention Of Surface Water On Tidally Locked Rocky Planets In The Venus Zone Around M Dwarfs
Terrestrial planets within the Venus zone surrounding M dwarf stars can retain surface ice caps on the perpetual dark side if atmospheric heat transport is inefficient, (as suggested by previous […]
Posted inAstrogeology, Atmospheres, Climate, Weather, Biogeochemical Cycles & Geobiology, Exoplanets, -moons, -comets, Habitable Zones, Imaging & Spectroscopy, Lava / magma ocean / Volcanic Worlds, Status Report
Characterizing the Radiative-Convective Structure of Dense Rocky Planet Atmospheres
We use a one-dimensional line-by-line radiative-convective model to simulate hot, dense terrestrial-planet atmospheres.
Posted inAstronomy & Telescopes, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Status Report
Two Neighbours To The Ultra-short-period Earth-sized Planet K2-157 b In The Warm Neptunian Savanna
The formation and evolution of ultra-short-period (USP) planets is poorly understood. However, it is widely thought that these planets migrated inwards through interactions with outer neighbours.
Posted inAstronomy & Telescopes, Exoplanets, -moons, -comets, Status Report
RedDots: Planetary Masses In The GJ1061 System From Planet-planet Interaction
GJ1061 is a very nearby M star hosting three low-mass temperate planets detected from radial velocity variations.
Posted inAstronomy & Telescopes, Atmospheres, Climate, Weather, Exoplanets, -moons, -comets, Status Report, Stellar Cartography
The Receding Cosmic Shoreline of Mid-to-Late M Dwarfs: Measurements of Active Lifetimes Worsen Challenges for Atmosphere Retention by Rocky Exoplanets
Detecting and characterizing the atmospheres of terrestrial exoplanets is a key goal of exoplanetary astronomy, one that may now be within reach given the upcoming campaign to conduct a large-scale […]
Posted inAstrochemistry, Astrogeology, Atmospheres, Climate, Weather, Biosignatures & Paleobiology, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Status Report
An Oxidation Gradient Straddling the Small Planet Radius Valley
We present a population-level view of volatile gas species (H2, He, H2O, O2, CO, CO2, CH4) distribution during the sub-Neptune to rocky planet transition, revealing in detail the dynamic nature […]
Posted inAtmospheres, Climate, Weather, Exoplanets, -moons, -comets, Habitable Zones, Status Report
Habitable Zone and Atmosphere Retention Distance (HaZARD) Stellar-evolution-dependent Loss Models of Secondary Atmospheres
A major open question in exoplanet research is whether secondary atmospheres are rare around Earth-sized rocky exoplanets. In this work we determine the distance at which an Earth-sized planet orbiting […]
Posted inAstrogeology, Exoplanets, -moons, -comets, Imaging & Spectroscopy, Status Report, Stellar Cartography
Carving the Edges of the Rocky Planet Population
Short-period planets provide ideal laboratories for testing star-planet interaction. Planets that are smaller than ∼2R⊕ are considered to be largely rocky either having been stripped of or never having acquired […]
Posted inAstropharmacy / Biotechnology, Biogeochemical Cycles & Geobiology, Biophysics, Exoplanets, -moons, -comets, Habitable Zones, Status Report, Water/Hycean Worlds & Oceanography
Probing The Limits of Habitability: A Catalog Of Rocky Exoplanets In The Habitable Zone
Several ground- and space-based searches have increased the number of known exoplanets to nearly 6000. While most are highly unlike our planet, the first rocky worlds in the Habitable Zone […]