Results 81 to 90 of about 4,196,309 (173)
The Astrophysical JournalThe formation and evolution of planetary systems are linked to their host stellar environment. In this study, we employ a pebble-accretion-based planet population synthesis model to explore the correlation between planetary properties and stellar mass ...
Mengrui Pan +5 more
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Distinguishing the chemical signatures of exoplanet host stars.
The objective of this thesis is to determine the chemical abundances of planet-hosting stars, and how they may be related to planet formation. In particular, the aim is to determine whether the chemical signatures of different types of exoplanet host ...
Bull, Ethan
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Testing the Origin of Hot Jupiters with Atmospheric Surveys
The Astrophysical JournalIn spite of their long detection history, the origin of hot Jupiters remains to be resolved. While dynamical evidence suggests high-eccentricity migration is most likely, conflicts remain when considering hot Jupiters as a population in the context of ...
Lina D’Aoust +3 more
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The Astrophysical Journal LettersThe ubiquity of “peas-in-a-pod” architectural patterns and the existence of the radius valley each presents a striking population-level trend for planets with R _p ≤ 4 R _⊕ that serves to place powerful constraints on the formation and evolution of these
Armaan V. Goyal, Songhu Wang
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The Astronomical JournalExoplanet systems are thought to evolve on secular timescales over billions of years. This evolution is impossible to directly observe on human timescales in most individual systems.
Stephen P. Schmidt +2 more
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The Radius Cliff is a Waterfall: Explaining Sub-Neptune Exoplanets with Steam Worlds
The Astrophysical JournalThe demographics of Kepler planets provide a key testbed for models of planet formation and evolution, particularly for explaining the radius valley separating super-Earths and sub-Neptunes.
Aritra Chakrabarty +3 more
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, 2019 Clouds, which are common features in Earth's atmosphere, form in atmospheres of planets that orbit other stars than our Sun, in so-called extrasolar planets or exoplanets. Exoplanet atmospheres can be chemically extremely rich.
Helling, Christiane
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The Astrophysical JournalThe Kepler-observed distribution of planet sizes has revealed two distinct patterns: (1) a radius valley separating super-Earths and sub-Neptunes and (2) a preference for intrasystem size similarity.
Matthias Y. He, Eric B. Ford
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The Astrophysical JournalExoplanet mass and radius inferences fundamentally rely on host star mass and radius inferences. Despite the importance of host star mass, radius, and elemental abundance inferences for the derivation of exoplanet internal structure constraints ...
Alejandra Ross +4 more
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, 2014 A unique short-period (P = 0.65356(1) d) Mercury-size Kepler exoplanet candidate KIC012557548b has been discovered recently by Rappaport et al. (2012).
Zhou, Guyin (George) +6 more
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