Exoplanet interior retrievals: core masses and metallicities from atmospheric abundances [PDF]
Monthly notices of the Royal Astronomical Society, 2023 The mass and distribution of metals in the interiors of exoplanets are essential for constraining their formation and evolution processes. Never the less, with only masses and radii measured, the determination of exoplanet interior structures is ...
Sanne Bloot +3 more
semanticscholar +1 more source
Constraining stellar rotation and planetary atmospheric evolution of a dozen systems hosting sub-Neptunes and super-Earths [PDF]
Astronomy & Astrophysics, 2021 Context. Planetary atmospheric evolution modelling is a prime tool for understanding the observed exoplanet population and constraining formation and migration mechanisms, but it can also be used to study the evolution of the activity level of planet ...
A. Bonfanti +3 more
semanticscholar +1 more source
Atmospheric Collapse and Reinflation through Impacts for Terrestrial Planets around M Dwarfs
The Astrophysical Journal LettersDetection of an atmosphere around a terrestrial exoplanet will be a major milestone in the field, but our observational capacities are biased towards tidally locked, close-in planets orbiting M dwarf stars. The atmospheres of these planets are vulnerable
Prune C. August +4 more
doaj +2 more sources
How to Identify Exoplanet Surfaces Using Atmospheric Trace Species in Hydrogen-dominated Atmospheres [PDF]
Astrophysical Journal, 2021 Sub-Neptunes (R p ∼ 1.25–4 R Earth) remain the most commonly detected exoplanets to date. However, it remains difficult for observations to tell whether these intermediate-sized exoplanets have surfaces and where their surfaces are located.
Xinting 婷 Yu 余馨 +3 more
semanticscholar +1 more source
A Geologic Si‐O‐C Pathway to Incorporate Carbon in Silicates
Geophysical Monograph Series, Page 47-54., 2020 This book is Open Access. A digital copy can be downloaded for free from Wiley Online Library.
Explores the behavior of carbon in minerals, melts, and fluids under extreme conditions
Carbon trapped in diamonds and carbonate-bearing rocks in subduction zones are examples of the continuing exchange of substantial carbon ...
Alexandra Navrotsky +2 more
wiley +2 more sources
True Polar Wander of Lava Worlds
The Astrophysical Journal Letters, 2023 As one of the most detectable types of terrestrial planets, lava worlds are highly prioritized targets for exoplanet atmosphere characterization since their atmospheres may reveal what they are made of and how.
Wanying Kang, Francis Nimmo, Feng Ding
doaj +1 more source
Conclusive Evidence for a Population of Water Worlds around M Dwarfs Remains Elusive
The Astrophysical Journal Letters, 2023 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 thermal ...
James G. Rogers +2 more
doaj +1 more source
The influence of bulk composition on the long-term interior-atmosphere evolution of terrestrial exoplanets [PDF]
Astronomy & Astrophysics, 2020 Aims.The secondary atmospheres of terrestrial planets form and evolve as a consequence of interaction with the interior over geological time. We aim to quantify the influence of planetary bulk composition on the interior–atmosphere evolution for Earth-sized terrestrial planets to aid in the interpretation of future observations of terrestrial exoplanet
Spaargaren, Rob J +4 more
openaire +4 more sources
Evolution of the Exoplanet Size Distribution: Forming Large Super-Earths Over Billions of Years [PDF]
Astronomical Journal, 2020 The radius valley, a bifurcation in the size distribution of small, close-in exoplanets, is hypothesized to be a signature of planetary atmospheric loss. Such an evolutionary phenomenon should depend on the age of the star–planet system. In this work, we
T. David +10 more
semanticscholar +1 more source