Results 41 to 50 of about 20,660,199 (171)

The Evolution of Jupiter and Saturn as a Function of the Rρ Parameter

open access: yesThe Astrophysical Journal
Computed using the APPLE planetary evolution code, we present updated evolutionary models for Jupiter and Saturn that incorporate helium rain, nonadiabatic thermal structures, and “fuzzy” extended heavy-element cores.
Ankan Sur   +3 more
doaj   +1 more source

Tidal Dissipation in Stably Stratified and Semiconvective Regions of Rotating Giant Planets: Incorporating Coriolis Forces

open access: yesThe Astrophysical Journal, 2023
We study how stably stratified or semiconvective layers alter tidal dissipation rates associated with the generation of inertial, gravito-inertial, interfacial, and surface gravity waves in rotating giant planets.
Christina M. Pontin   +2 more
doaj   +1 more source

Oleoscopicity and Organic Deliquescence of Hydrophobic Compounds Under a Hydrocarbon Atmosphere

open access: yesJournal of Physical Organic Chemistry, Volume 39, Issue 10, October 2026.
Hydrophobic compounds can acquire hydrocarbon vapor from organic‐enriched atmospheres and may deliquesce by dissolving completely in the acquired solvent. We report trends in oleoscopicity for a variety of organic compounds under an atmosphere of n‐hexane as a model hydrocarbon solvent. ABSTRACT This paper examines the acquisition of organic solvent by
Steven K. Skaggs   +3 more
wiley   +1 more source

On the interaction between embedded planets and the corotation region of protoplanetary discs [PDF]

open access: yes, 2015
PhDDisc material in the corotation region librates with respect to low-mass planets on horseshoe trajectories. The exchange of angular momentum associated with this libration gives rise to the non-linear corotation torque (the horseshoe drag).
Fendyke, Stephen
core   +1 more source

Tidal Dissipation in Stratified and Semi-convective Regions of Giant Planets

open access: yesThe Astrophysical Journal, 2023
We study how stably stratified or semi-convective layers alter the tidal dissipation rates associated with the generation of internal waves in planetary interiors.
Christina M. Pontin   +2 more
doaj   +1 more source

Superior Irradiation Resistance of an AlN/Al Nanocomposite: Combined Ion Irradiation and In Situ Electron Irradiation Studies

open access: yesRare Metals, Volume 45, Issue 10, October 2026.
ABSTRACT Lightweight metallic materials with high irradiation tolerance are essential for aerospace systems operating in extreme irradiation environments. However, the irradiation behavior of particle‐reinforced aluminum matrix composites and underlying irradiation damage mechanisms remain insufficiently understood.
Yuyao Chen   +7 more
wiley   +1 more source

Isotopic ratios D/H and ¹⁵ N/¹⁴N in giant planets

open access: yes, 2018
The determination of isotopic ratios in planets is important since it allows us to investigate the origins and initial composition of materials. The present work aims to determine the possible range of values for isotopic ratios D/H and ¹⁵N/¹⁴N in giant ...
Thiabaud, Amaury   +3 more
core   +1 more source

From Flybys to Sample Return: A Review of Space Probes and Robotic Sampling Technologies for Small Bodies

open access: yesJournal of Field Robotics, Volume 43, Issue 7, Page 4475-4514, October 2026.
ABSTRACT As a crucial puzzle piece of deep space exploration, exploring small bodies can provide significant scientific insights and valuable mineral resources. Unlike missions to the Moon and Mars, small‐body missions pose distinct technical challenges, including communication delays, weak gravity, and uncertain environments. This paper reviews a full
Xin Zhang   +3 more
wiley   +1 more source

Propagation and Transmission of Jupiter’s Internal Waves

open access: yesThe Astrophysical Journal
Observations from the Juno spacecraft show that Jupiter has a large dilute core rather than a compact core. To investigate the effects of different core structures on wave propagation and transmission in Jupiter’s interior, we consider three models: (1 ...
Yuru Xu, Xing Wei
doaj   +1 more source

Ultracool Dwarfs Observed with the Spitzer Infrared Spectrograph: Equatorial Latitudes in L Dwarf Atmospheres Are Cloudier

open access: yesThe Astrophysical Journal Letters, 2023
We report direct observational evidence for a latitudinal dependence of dust cloud opacity in ultracool dwarfs, indicating that equatorial latitudes are cloudier than polar latitudes.
Genaro Suárez   +4 more
doaj   +1 more source

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