Results 31 to 40 of about 2,690,574 (274)
A Red Giant Branch Common-envelope Evolution Scenario for the Exoplanet WD 1856 b [PDF]
Astrophysical Journal Letters, 2021 We propose a common-envelope evolution scenario where a red giant branch (RGB) star engulfs a planet during its core helium flash to explain the puzzling system WD 1856+534, where a planet orbits a white dwarf (WD) of mass M WD ≃ 0.52 M ⊙ with an orbital
Ariel Merlov, Ealeal Bear, N. Soker
semanticscholar +1 more source
Vanadium oxide and a sharp onset of cold-trapping on a giant exoplanet [PDF]
Nature, 2023 The abundance of refractory elements in giant planets can provide key insights into their formation histories^ 1 . Owing to the low temperatures of the Solar System giants, refractory elements condense below the cloud deck, limiting sensing capabilities ...
S. Pelletier +17 more
semanticscholar +1 more source
Early Release Science of the exoplanet WASP-39b with JWST NIRSpec G395H [PDF]
Nature, 2022 Measuring the abundances of carbon and oxygen in exoplanet atmospheres is considered a crucial avenue for unlocking the formation and evolution of exoplanetary systems^ 1 , 2 .
L. Alderson +91 more
semanticscholar +1 more source
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
Warm giant exoplanet characterisation: current state, challenges and outlook [PDF]
Frontiers in Astronomy and Space Sciences, 2023 The characterisation of giant exoplanets is crucial to constrain giant planet formation and evolution theory and for putting the solar-system’s giant planets in perspective. Typically, mass-radius (M-R) measurements of moderately irradiated warm Jupiters
S. Müller, R. Helled
semanticscholar +1 more source
Sporadic Spin-orbit Variations in Compact Multiplanet Systems and Their Influence on Exoplanet Climate [PDF]
Astrophysical Journal Letters, 2023 Climate modeling has shown that tidally influenced terrestrial exoplanets, particularly those orbiting M-dwarfs, have unique atmospheric dynamics and surface conditions that may enhance their likelihood to host viable habitats.
Howard Chen +3 more
semanticscholar +1 more source
ExoMDN: Rapid characterization of exoplanet interior structures with Mixture Density Networks [PDF]
Astronomy & Astrophysics, 2023 Characterizing the interior structure of exoplanets is essential for understanding their diversity, formation, and evolution. As the interior of exoplanets is inaccessible to observations, an inverse problem must be solved, where numerical structure ...
Philipp Baumeister, N. Tosi
semanticscholar +1 more source
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
Exoplanet Statistics and Theoretical Implications [PDF]
Annual Review of Astronomy and Astrophysics, 2021 In the past few years, significant advances have been made in understanding the distributions of exoplanet populations and the architecture of planetary systems.
Wei Zhu, S. Dong
semanticscholar +1 more source
Evolution of exoplanets and their parent stars [PDF]
EAS Publications Series, 2014 Studying exoplanets with their parent stars is crucial to understand their population, formation and history. We review some of the key questions regarding their evolution with particular emphasis on giant gaseous exoplanets orbiting close to solar-type stars.
Guillot, Tristan +4 more
openaire +5 more sources