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Related papers: A new pattern in Saturn's D ring created in late 2…

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The thermal inertia values of Saturn's main rings (the A, B, and C rings and the Cassini division) are derived by applying our thermal model to azimuthally scanned spectra taken by the Cassini Composite Infrared Spectrometer (CIRS). Model…

Earth and Planetary Astrophysics · Physics 2015-06-11 Ryuji Morishima , Linda Spilker , Keiji Ohtsuki

The Cassini spacecraft discovered a propeller-shaped structure in Saturn's A ring. This propeller structure is thought to be formed by gravitational scattering of ring particles by an unseen embedded moonlet. Self-gravity wakes are…

Earth and Planetary Astrophysics · Physics 2015-05-27 Shugo Michikoshi , Eiichiro Kokubo

The Cassini spacecraft found a new and unique ring that shares the trajectory of Janus and Epimetheus, co-orbital satellites of Saturn. Performing image analysis, we found this to be a continuous ring. Its width is between 30% and 50%…

The diamagnetism of ice particles of the rings can explain their separation and the sharp edges of the rings. The existing gravitational theories of the origin of rings can't explain these observed facts. Taking into account the magnetic…

Earth and Planetary Astrophysics · Physics 2022-04-08 Vladimir V. Tchernyi , Sergey V. Kapranov

The last 22.5 orbits of the Cassini mission brought the spacecraft to less than 3000 km from Saturn's 1-bar surface. These close encounters offered an unprecedented view of Saturn's magnetic field, including contributions from the internal…

Observations of the November 1995 Sun crossing of the Saturn's ring-plane made with the 3.6m CFH telescope, using the UHAO adaptive optics system, are presented here. We report the detection of four arcs located in the vicinity of the F…

Astrophysics · Physics 2009-10-31 S. Charnoz , A. Brahic , C. Ferrari , I. Grenier , F. Roddier , P. Thebault

It is demonstrated how Saturn rings may be originated due to interaction of iced particles (with II kind superconductivity) moving by chaotic orbits within protoplanetary cloud with magnetic field of Saturn after it appearance. Eventually…

Earth and Planetary Astrophysics · Physics 2020-05-04 Vladimir V. Tchernyi , Sergey V. Kapranov , Andrey Yu. Pospelov

We analyze data retrieved by the Imaging Science System onboard the Cassini spacecraft to study the horizontal velocity and vorticity fields of Saturn's Polar Regions (latitudes 60-90$^\circ$N in June-December 2013 and 60-90$^\circ$S in…

Earth and Planetary Astrophysics · Physics 2024-02-13 A. Antuñano , T. del Río-Gaztelurrutia , A. Sánchez-Lavega , R. Hueso

Plasma rotation plays a large role in determining the size and shape of Saturn's disc-like magnetosphere. A magnetosphere more confined to the equator in the polar regions is expected as a result of the interaction between this type of…

Context: As a result of Titan's migration and Saturn's probable capture in secular spin-orbit resonance, recent works show that Saturn's obliquity could be steadily increasing today and may reach large values in the next billions of years.…

Earth and Planetary Astrophysics · Physics 2021-10-20 Melaine Saillenfest , Giacomo Lari

Over the last eight years, the Visual and Infrared Mapping Spectrometer (VIMS) aboard the Cassini orbiter has returned hyperspectral images in the 0.35-5.1 micron range of the icy satellites and rings of Saturn. These very different objects…

The appearance of debris disks around distant stars depends upon the scattering/phase function (SPF) of the material in the disk. However, characterizing the SPFs of these extrasolar debris disks is challenging because only a limited range…

Earth and Planetary Astrophysics · Physics 2015-09-24 M. M. Hedman , C. C. Stark

The Phoebe ring, Saturn's largest and faintest ring, lies far beyond the planet's well-known main rings. It is primarily sourced by collisions with Saturn's largest irregular satellite Phoebe, perhaps through stochastic macroscopic…

Earth and Planetary Astrophysics · Physics 2015-06-18 Daniel Tamayo , Matthew M. Hedman , Joseph A. Burns

With recent advances in the modeling of the solar system giant planets, rapid progress has been made in understanding the remaining questions pertaining to their formation and evolution. However, this progress has largely neglected the…

Earth and Planetary Astrophysics · Physics 2026-02-04 Yubo Su , Janosz W. Dewberry , Roberto Tejada Arevalo , Ankan Sur , Adam Burrows

Among the persistent questions raised by the existence of a rotational modulation of the Saturn Kilometric Radiation (SKR), the origin of the variability of the 10.8 hours SKR period at a 1% level over weeks to years remains intriguing.…

Earth and Planetary Astrophysics · Physics 2011-02-16 Laurent Lamy

The Cassini spacecraft's last orbits directly sampled Saturn's thermosphere and revealed a much more chemically complex environment than previously believed. Observations from the Ion and Neutral Mass Spectrometer (INMS) aboard Cassini…

Earth and Planetary Astrophysics · Physics 2020-09-02 J. Serigano , S. M. Hörst , C. He , T. Gautier , R. V. Yelle , T. T. Koskinen , M. G Trainer

We explore whether hyperbolic diffusion may help explain sharp edges in the gaps in Saturn's rings. Sharp edges are conventionally understood to be due to angular momentum flux reversal at gap edges. We do not dispute this finding, but…

Earth and Planetary Astrophysics · Physics 2025-03-06 Peter Todd Williams

Kilometer-sized moonlets in Saturn's A ring create S-shaped wakes called "propellers" in surrounding material. The Cassini spacecraft has tracked the motions of propellers for several years and finds that they deviate from Keplerian orbits…

Earth and Planetary Astrophysics · Physics 2015-06-05 Margaret Pan , Hanno Rein , Eugene Chiang , Steven N. Evans

We simulate the collision of precursor icy moons analogous to Dione and Rhea as a possible origin for Saturn's remarkably young rings. Such an event could have been triggered a few hundred million years ago by resonant instabilities in a…

We revisit the evidence for a "dust cloud" observed by the Cassini spacecraft at Saturn in 2006. The simultaneous data of 3 instruments are compared to interpret the signatures of a coherent swarm of dust that could have remained floating…

Earth and Planetary Astrophysics · Physics 2015-05-19 Emil Khalisi
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