Results 101 to 110 of about 26,344 (179)

On the Origin of Jupiter’s Fuzzy Core: Constraints from N-body, Impact, and Evolution Simulations

The Astrophysical Journal
It has been suggested that Jupiter’s fuzzy core could be a result of a giant impact. Here, we investigate the expected impact conditions from N -body simulations. We then use state-of-the-art smoothed particle hydrodynamics simulations to investigate the
Thomas Meier, Christian Reinhardt, Sho Shibata, Simon Müller, Joachim Stadel, Ravit Helled   +5 more
doaj   +1 more source

Wind Shear and the Role of Eddy Vapor Transport in Driving Water Convection on Jupiter

The Planetary Science Journal
Recent observations of convection in the Jovian atmosphere have demonstrated that convection is strongly concentrated at specific locations on the planet.
Ramanakumar Sankar, Michael H. Wong, Csaba Palotai, Shawn Brueshaber   +3 more
doaj   +1 more source

On the Origin and Dynamical Evolution of Jupiter’s Moon Amalthea

The Astrophysical Journal
Interior to the orbits of Jupiter’s iconic Galilean moons are four small satellites with individual mean radii R  ≲ 84 km. Multiple lines of evidence suggest that these bodies formed at a more distant location in Jupiter’s circumplanetary disk before ...
Ian R. Brunton, Konstantin Batygin
doaj   +1 more source

A Constraint on the Density of Jupiter’s Moon Thebe from Primordial Dynamics

The Astrophysical Journal Letters
Of the 97 known satellites in the Jovian system, the individual masses and densities of each moon have only been determined for six of them: the four Galileans, Amalthea, and Himalia. In this Letter, we derive a prediction for the mean density (and mass)
Ian R. Brunton, Konstantin Batygin
doaj   +1 more source

Asteroids Fail to Retain Cometary Impact Signatures

The Planetary Science Journal
A bombardment of comets is thought to have occurred in the inner solar system as a result of a dynamical instability among the giant planets after gas disk dispersal.
Sarah Joiret, Guillaume Avice, Ludovic Ferrière, Zoë M. Leinhardt, Simon Lock, Alexandre Mechineau, Sean N. Raymond   +6 more
doaj   +1 more source

Different Inhomogeneous Evolutionary Histories for Uranus and Neptune

The Astrophysical Journal Letters
We present updated nonadiabatic and inhomogeneous evolution models for Uranus and Neptune, employing an interior composition of methane, ammonia, water, and rocks.
Roberto Tejada Arevalo
doaj   +1 more source

Heat-flux-limited Cloud Activity and Vertical Mixing in Giant Planet Atmospheres with an Application to Uranus and Neptune

The Planetary Science Journal
Storms operated by moist convection and the condensation of CH _4 or H _2 S have been observed on Uranus and Neptune. However, the mechanism of cloud formation, thermal structure, and mixing efficiency of ice giant weather layers remains unclear. In this
Huazhi Ge, Cheng Li, Xi Zhang, Chris Moeckel   +3 more
doaj   +1 more source

Characterization of exoplanets in the James Webb Space Telescope era. [PDF]

Proc Natl Acad Sci U S A
Lunine JI, Bahcall N.
europepmc   +1 more source

A precise metallicity and carbon-to-oxygen ratio for a warm giant exoplanet from its panchromatic JWST emission spectrum. [PDF]

Proc Natl Acad Sci U S A
Wiser LS, Bell TJ, Line MR, Schlawin E, Beatty TG, Welbanks L, Greene TP, Parmentier V, Murphy MM, Fortney JJ, Arnold K, Mehta N, Ohno K, Mukherjee S.   +13 more
europepmc   +1 more source

The Origins & Reservoirs of Exocomets. [PDF]

Space Sci Rev
Bannister M, Pfalzner S, Pearce T, Mustill AJ, Klahr H, Nomura H, Ohashi N, Kokotanekova R, Marino S, Bodewits D, Marschall R, Seligman DZ, Jones GH, Veras D.   +13 more
europepmc   +1 more source