Length, Width, and Relative Age Analysis of Lineaments in the Galileo Regional Maps with LineaMapper
The Galileo regional mosaics (“RegMaps”) show Europa’s extensive regional-scale tectonic features under similar illumination conditions. Detailed lineament studies can help constrain resurfacing events and formation mechanisms, but most lineament maps ...
Caroline Haslebacher +5 more
doaj +1 more source
Delivery of Dust Particles from Protoplanetary Disks onto Circumplanetary Disks of Giant Planets
The principal regular satellites of gas giants are thought to be formed by the accumulation of solid materials in circumplanetary disks (CPDs). While there has been significant progress in the study of satellite formation in CPDs, details of the supply ...
Natsuho Maeda +5 more
doaj +1 more source
Inter‐Orbit Variability of Jupiter's Current Sheet Morphology
Abstract The structure of Jupiter's magnetosphere reflects the combined effects of a strong intrinsic field and an extended hinged current sheet whose morphology varies with solar wind forcing. We present a study of Jupiter's magnetodisc that combines the UCL‐AGA magnetodisc code with Khurana's generalized, hinged current sheet models (1992/2022) to ...
A. Santos +7 more
wiley +1 more source
Dawn–Dusk Asymmetry of the Io Plasma Torus Derived from Io’s Auroral Footprints Observed by Juno-UVS
The Io plasma torus (IPT) is a dense plasma cloud that corotates around Jupiter near Io’s orbit. A dawn-to-dusk electric field shifts the IPT dawnward.
Shinnosuke Satoh +10 more
doaj +1 more source
Temporal Variability of Saturn's H2 Dayglow and Northern Aurora Observed by Hisaki and Cassini
Abstract Ultraviolet (UV) emissions from molecular hydrogen in Saturn's atmosphere consist of bright auroral emission over the poles and disk‐wide airglow. The dayside disk emits substantial intensities (dayglow) previously detected by various instruments.
L. S. Clare +14 more
wiley +1 more source
Modeling the Jovian subnebula: I. Thermodynamic conditions and migration of proto-satellites.
We have developed an evolutionary turbulent model of the Jovian subnebula consistent with the extended core accretion formation model of Jupiter. This model takes into account the vertical structure of the subnebula, as well as the evolution of the ...
Mousis, O. +5 more
core +1 more source
Jupiter's Auroral Ionosphere: Hybrid Monte Carlo, Auroral Spectrum and Conductivity Modeling
Abstract We present a new model of auroral precipitation and associated phenomena at Jupiter, called the Jupiter Auroral Ionosphere Code (JAIC). The hybrid model follows the primary electron population using a Monte Carlo code that runs on a GPU, and computes the contribution of the secondaries using a two‐stream approximation.
J. D. Nichols
wiley +1 more source
Ion Cyclotron Waves Associated With Ionospheric Outflow at Jupiter
Abstract The mechanism driving ion outflow from Jupiter's auroras remains to be determined. H+ ${\mathrm{H}}^{+}$ outflow has been observed with highly field‐aligned pitch angles consistent with acceleration by high‐altitude electrostatic potential structures.
E. A. Skinner +8 more
wiley +1 more source
Europa’s Sodium and Potassium Exosphere during Juno’s Flyby
Jupiter’s icy moon Europa is enveloped in gaseous sodium and potassium that resonantly scatter sunlight as optical emission lines. The High Resolution Echelle Spectrograph on the Keck I telescope has spatially mapped these alkalis contemporaneously with ...
Emma Lovett +2 more
doaj +1 more source
The Role of Planetary Rotation in Polar Cusp Localization
Abstract Juno observations have revealed that Jupiter's polar cusps are displaced toward dusk and even the nightside, contradicting the Earth‐derived paradigm that is confined to narrower ranges near noon. These findings underscore the overlooked influence of planetary rotation on magnetospheric dynamics, exposing a critical gap in current theoretical ...
Junjie Chen +9 more
wiley +1 more source

