Results 121 to 130 of about 2,941,415 (239)
Three-dimensional Orbital Architectures and Detectability of Adjacent Companions to Hot Jupiters
The Astrophysical JournalThe orbital properties of the (as yet) small population of hot Jupiters with nearby planetary companions provide valuable constraints on the past migration processes of these systems.
Thomas MacLean, Juliette Becker
doaj +1 more source
Most Super-Earths Have Less Than 3% Water
The Astrophysical JournalSuper-Earths are highly irradiated, small planets with bulk densities approximately consistent with Earth. We construct combined interior atmosphere models of super-Earths that trace the partitioning of water throughout a planet, including an iron-rich ...
James G. Rogers +4 more
doaj +1 more source
The Astrophysical Journal LettersThe recent discovery of “ultrahot” ( P < 1 day) Neptunes has come as a surprise: some of these planets have managed to retain gaseous envelopes despite being close enough to their host stars to trigger strong photoevaporation and/or Roche lobe overflow ...
Shreyas Vissapragada +18 more
doaj +1 more source
Symposium Review: Wild Animal Welfare is in Our Backyards
The Bulletin of the Ecological Society of America, Volume 107, Issue 2, April 2026.
Bonnie Fairbanks Flint +3 more
wiley +1 more source
The coupled tidal evolution of the moons and spins of warm exoplanets
Astronomy & AstrophysicsContext. The Solar System giant planets harbor a wide variety of moons. Among them, the largest moons have moon-to-planet mass ratios of the order of 10 −4 . Moons around exoplanets are plausibly similarly abundant, even though most of them are likely too small to be ...
Yubo Su, Melaine Saillenfest
openaire +2 more sources
Helium in the Extended Atmosphere of the Warm Superpuff TOI-1420b
The Astronomical JournalSuperpuffs are planets with exceptionally low densities ( ρ ≲ 0.1 g cm ^−3 ) and core masses ( M _c ≲ 5 M _⊕ ). Many lower-mass ( M _p ≲ 10 M _⊕ ) superpuffs are expected to be unstable to catastrophic mass loss via photoevaporation and/or boil-off ...
Shreyas Vissapragada +13 more
doaj +1 more source
Sub-Neptune Memories. I. Implications of Inefficient Mantle Cooling and Silicate Rain
The Astrophysical JournalWe explore the evolution of sub-Neptune (radii between ∼1.5 and 4 R _⊕ ) exoplanet interior structures using our upgraded evolution code, APPLE , which self-consistently couples the thermal and compositional evolution of the whole structure.
Roberto Tejada Arevalo +5 more
doaj +1 more source
Formation and evolution of exoplanets in different environments
, 2017 Invited Review. To appear in Astronomical Society of the Pacific (ASP) Conference Series "Non-Stable Universe: Energetic Resources, Activity Phenomena and Evolutionary Processes" dedicated to the 70th anniversary of Byurakan Astrophysical ...
openaire +2 more sources
Characterizing Exoplanet Habitability
A habitable exoplanet is a world that can maintain stable liquid water on its surface. Techniques and approaches to characterizing such worlds are essential, as performing a census of Earth-like planets that may or may not have life will inform our ...
Robinson, Tyler D.
core +1 more source
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
doaj +1 more source