Results 101 to 110 of about 783,665 (255)

A Multifrequency Global View of Callisto’s Thermal Properties from ALMA

The Planetary Science Journal
We present thermal observations of Callisto’s leading and trailing hemispheres obtained using the Atacama Large Millimeter/submillimeter Array (ALMA) at 0.87 mm (343 GHz), 1.3 mm (233 GHz), and 3 mm (97 GHz).
Maria Camarca, Katherine de Kleer, Bryan Butler, Alexander Thelen, Cole Meyer, Alex B. Akins, Imke de Pater, Mark A. Gurwell   +7 more
doaj   +1 more source

Temporal Changes in Europa's Ice Shell Thickness: Insights From Models of Convection

Journal of Geophysical Research: Planets, Volume 131, Issue 2, February 2026.
Abstract Europa is characterized by a thin ice Ih shell overlying a subsurface ocean and a large solid core. Estimates of the outer ice shell's thickness range from a few kilometers to several tens of kilometers, with strong implications for Europa's thermal and geological history.
Ji‐Ching Chen, Frédéric Deschamps, Wen‐Pin Hsieh   +2 more
wiley   +1 more source

Control networks for the Galilean satellites, November 1979 [PDF]

Pictures of the four Galilean satellites taken as the two Voyager spacecraft approached Jupiter during March and July 1979 are presented. Control nets of the Galilean satellites, computed photogrammetrically, and measurements of the mean radii are ...
Davies, M. E., Hauge, T. A., Katayama, F. Y., Roth, J. A.   +3 more
core   +1 more source

Revealing Callisto’s Near-subsurface Thermophysical Properties with ALMA Calibration Data

The Planetary Science Journal
Thermal images at different wavelengths probe varying subsurface depths of planetary bodies and therefore can inform us about their compositions, thermophysical properties, and impact histories.
Cole Meyer, Maria Camarca, Katherine de Kleer, Alexander Thelen, Christopher Chyba, Bryan Butler   +5 more
doaj   +1 more source

Sulfur Implantation into Water Ice with Propane: Implications for Organic Chemistry on the Surface of Europa

The Planetary Science Journal
We performed experiments of implantation of energetic sulfur ions (105 keV) into 2:1 water:propane ices at 80 K and analyzed the resulting refractory organic matter with ultrahigh-resolution mass spectrometry.
Alexis Bouquet, Cíntia Aparecida Pires da Costa, Philippe Boduch, Hermann Rothard, Alicja Domaracka, Grégoire Danger, Isabelle Schmitz, Carlos Afonso, Philippe Schmitt-Kopplin, Vincent Hue, Tom A. Nordheim, Alexander Ruf, Fabrice Duvernay, Maryse Napoleoni, Nozair Khawaja, Frank Postberg, Thomas Javelle, Olivier Mousis, Laura Isabel Tenelanda Osorio   +18 more
doaj   +1 more source

LunaIcy: Exploring Europa’s Icy Surface Microstructure through Multiphysics Simulations

The Planetary Science Journal
A multiphysics simulation model incorporating a sintering model coupled with the MultIHeaTS thermal solver was developed to study the evolution of icy moons’ microstructure.
Cyril Mergny, Frédéric Schmidt
doaj   +1 more source

Callisto’s Nonresonant Orbit as an Outcome of Circum-Jovian Disk Substructure

The Astrophysical Journal
The Galilean moons of Io, Europa, and Ganymede exhibit a 4:2:1 commensurability in their mean motions, a configuration known as the Laplace resonance. The prevailing view for the origin of this three-body resonance involves the convergent migration of ...
Teng Ee Yap, Konstantin Batygin
doaj   +1 more source

A High-precision Dynamical Model of Callisto: Incorporating Rotation Effects within Multilayer Internal Structure Models

The Astrophysical Journal
China is planning to launch the “Tianwen-4” mission around the year 2030, with its aim being the exploration of Jupiter and its moon, Callisto. Within the realm of deep space exploration, the accuracy of ephemerides is of great importance.
Kai Huang, Yongzhang Yang, Yuhao Chen, Yining Zhang, Yuqiang Li   +4 more
doaj   +1 more source

Impact of Jupiter’s Heating and Self-shadowing on the Jovian Circumplanetary Disk Structure

The Planetary Science Journal
Deciphering the structure of the circumplanetary disk (CPD) that surrounded Jupiter at the end of its formation is key to understanding how the Galilean moons formed.
Antoine Schneeberger, Olivier Mousis
doaj   +1 more source

Slow evolution of Europa's interior: metamorphic ocean origin, delayed metallic core formation, and limited seafloor volcanism. [PDF]

Sci Adv, 2023
Trinh KT, Bierson CJ, O'Rourke JG.
europepmc   +1 more source