Results 71 to 80 of about 464 (180)
The Planetary Science JournalIn the late stage of terrestrial planet formation, planets are predicted to undergo pairwise collisions known as giant impacts. Here, we present a high-resolution database of giant impacts for differentiated colliding bodies of iron–silicate composition,
Alexandre Emsenhuber +6 more
doaj +1 more source
Atomic-scale mixing between MgO and H$_2$O in the deep interiors of water-rich planets
, 2021 Water-rich planets exist in our Solar System (Uranus and Neptune) and are found to be common in the extrasolar systems (some of the sub-Neptunes). In conventional models of these planets a thick water-rich layer is underlain by a separate rocky interior.
Pakhomova, Anna +8 more
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Mass–Radius Relationships and Contraction of Condensed Planets by Cooling or Despinning
The Astrophysical JournalCondensed planets contract or expand as their temperature changes. With the exception of the effect of phase changes, this phenomenon is generally interpreted as being solely related to the thermal expansivity of the planet’s components. However, changes
Yanick Ricard, Frédéric Chambat
doaj +1 more source
The Astrophysical JournalUnderstanding the surface temperature and interior structure of cold-to-temperate sub-Neptunes is critical for assessing their habitability, yet direct observations are challenging.
Ziyu Huang +7 more
doaj +1 more source
, 1999 The recent discoveries of extrasolar giant planets (planets like Jupiter orbiting other stars like our Sun) at small distances from their central stars have revitalized the fields of planet and planetary system formation.
Trilling, David Eric
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The Effect of Guide Star Variability on PLATO Pointing Stability
The Astronomical JournalThe main science goal of the PLAnetary Transits and Oscillations of stars (PLATO) is to detect and characterize extrasolar planets, including terrestrial planets in the habitable zone (HZ) of their host stars.
Sam Bowling +8 more
doaj +1 more source
Unveiling the Interior Structure and Thermal Evolution of Super-Earth GJ 486b
The Astrophysical JournalRecent ground- and space-based surveys have shown that planets between Earth and Neptune in size, known as “super-Earths,” are among the most frequently found planets in the Galaxy. Although the JWST era has provided high-quality atmospheric data on many
Chandan K. Sahu +3 more
doaj +1 more source
Tidal Evolution of Extrasolar Moons and Its Applications
, 2014 In this thesis, we consider tidal evolution of extrasolar moons of star-planet-moon systems. First, we formulated tidal decay lifetimes for hypothetical moons with both lunar and stellar tides.
Sasaki, Takashi
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Accelerating Giant-impact Simulations with Machine Learning
The Astrophysical JournalConstraining planet-formation models based on the observed exoplanet population requires generating large samples of synthetic planetary systems, which can be computationally prohibitive.
Caleb Lammers +5 more
doaj +1 more source
Planet formation and disc dynamics in stellar clusters and misaligned binary systems
, 2009 PhDIn this thesis I investigate the formation and dynamics of planets and protoplanetary discs, subject to external gravitational perturbations.
Fragner, Moritz Matthias
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