The Impact-driven Atmospheric Loss of Super-Earths around Different Spectral Types of Host Stars
The Astrophysical JournalA planet’s mass loss is important for the its formation and evolution. The radius valley (RV) is believed to be triggered by evaporation-induced mass loss.
Wei Zhong +3 more
doaj +1 more source
A Revisit of the Mass–Metallicity Trends in Transiting Exoplanets
The Astronomical JournalThe two prevailing planet formation scenarios, core accretion and disk instability, predict distinct planetary mass–metallicity relations. Yet, the detection of this trend remains challenging due to inadequate data on planet atmosphere abundance and ...
Qinghui Sun +4 more
doaj +1 more source
Longitudinal Filtering, Sponge Layers, and Equatorial Jet Formation in a General Circulation Model of Gaseous Exoplanets [PDF]
Duncan Christie +6 more
openalex +3 more sources
Observational Signatures of a Previous Dynamical Instability in Multi-planet M-dwarf Systems
The Astrophysical JournalWe identify observational signatures suggesting a history of dynamical instability in 26 out of 34 M-dwarf multi-planet systems containing no large planets.
Anna C. Childs +4 more
doaj +1 more source
Hundreds of TESS Exoplanets Might Be Larger than We Thought
The Astrophysical Journal LettersThe radius of a planet is a fundamental parameter that probes its composition and habitability. Precise radius measurements are typically derived from the fraction of starlight blocked when a planet transits its host star.
Te Han +7 more
doaj +1 more source
Separating Super-puffs versus Hot Jupiters among Young Puffy Planets
The Astrophysical JournalDiscoveries of close-in young puffy ( R _p ≳ 6 R _⊕ ) planets raise the question of whether they are bona fide hot Jupiters or puffed-up Neptunes, potentially placing constraints on the formation location and timescale of hot Jupiters.
Amalia Karalis +2 more
doaj +1 more source
Can Isotopologues Be Used as Biosignature Gases in Exoplanet Atmospheres? [PDF]
Life (Basel), 2023 Glidden A +3 more
europepmc +1 more source
Lithium abundances in exoplanet host stars as a test for planetary formation scenarii [PDF]
, 2005 M. Castro, O. Richard, S. Vauclair
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Atmospheric Studies of brown-Dwarfs and Exoplanets: Insights into Planet Formation and Evolution
, 2018 Cette thèse se focalise sur les propriétés atmosphériques des exoplanètes et des naines brunes et le lien avec les mécanismes de formation. Dans la première partie, le ratio des abondances de carbone et d'oxygène (C/O) du compagnon et de son étoile hôte est utilisé comme proxy.
openaire +2 more sources