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Related papers: Saturn's G ring: insights from the dynamical evolu…

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At the end of the Cassini mission, Saturn's rings have been claimed to be spectacularly young compared to the age of the Solar System: their unusual ice-rich composition corresponds to initially pure ice rings polluted by interplanetary…

Earth and Planetary Astrophysics · Physics 2026-03-05 Gregorio Ricerchi , Aurélien Crida

Saturn's diffuse E ring consists of many tiny (micron and sub-micron) grains of water ice distributed between the orbits of Mimas and Titan. Various gravitational and non-gravitational forces perturb these particles' orbits, causing the…

Earth and Planetary Astrophysics · Physics 2015-06-03 M. M. Hedman , J. A. Burns , D. P. Hamilton , M. R. Showalter

The $\mu$ and $\nu$ rings of Uranus form a secondary ring-moon system with the satellites Puck, Mab,Portia, and Rosalind. These rings are tenuous and dominated by micrometric particles, which can be strongly disturbed by the solar radiation…

Earth and Planetary Astrophysics · Physics 2013-07-12 R. Sfair

Certain spiral density waves in Saturn's rings are generated through resonances with planetary normal modes, making them valuable probes of Saturn's internal structure. Previous research has primarily focused on the rotation rates of these…

We present results from large-scale particle simulations of the viscous overstability in Saturn's rings. The overstability generates a variety of structure on scales covering a few hundred metres to several kilometres, including…

Earth and Planetary Astrophysics · Physics 2015-06-11 Hanno Rein , Henrik Latter

The G-ring arc of Saturn, confined by the 7:6 corotation eccentric resonance with Mimas, is primarily composed of micrometric particles. These particles, significantly influenced by the solar radiation pressure, are subject to rapid…

Earth and Planetary Astrophysics · Physics 2025-01-23 V. Lattari , R. Sfair , P. B. Siqueira , C. M. Schäfer

The origin and long-term evolution of Saturn's rings is still an unsolved problem in modern planetary science. In this chapter we review the current state of our knowledge on this long-standing question for the main rings (A, Cassini…

Earth and Planetary Astrophysics · Physics 2015-05-14 Sebastien Charnoz , Luke Dones , Larry W. Esposito , Paul R. Estrada , Matthew M. Hedman

The origin and evolution of Saturn's rings is critical to understanding the Saturnian system as a whole. Here, we discuss the physical and chemical composition of the rings, as a foundation for evolutionary models described in subsequent…

Radio occultations of Saturn's main rings by spacecraft suggest a power law particle size-distribution down to sizes of the order of 1 cm (Marouf et al., 1983), (Zebker et al., 1985). The lack of optical depth variations between ultraviolet…

Earth and Planetary Astrophysics · Physics 2013-12-11 Rebecca A. Harbison , Philip D. Nicholson , Matthew M. Hedman

Saturn's main rings exhibit variations in both their opacity and spectral properties on a broad range of spatial scales, and the correlations between these parameters can provide insights into the processes that shape the composition and…

Earth and Planetary Astrophysics · Physics 2013-01-14 M. M. Hedman , P. D. Nicholson , J. N. Cuzzi , R. N. Clark , G. Filacchione , F. Capaccioni , M. Ciarniello

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

Saturn's rings consist of a huge number of water ice particles, with a tiny addition of rocky material. They form a flat disk, as the result of an interplay of angular momentum conservation and the steady loss of energy in dissipative…

Earth and Planetary Astrophysics · Physics 2015-08-06 Nikolai Brilliantov , Pavel Krapivsky , Anna Bodrova , Frank Spahn , Hisao Hayakawa , Vladimir Stadnichuk , Juergen Schmidt

The best constraints on the internal structures of giant planets have historically come from measurements of their gravity fields. These gravity data are inherently mostly sensitive to a planet's outer regions, providing only loose…

Earth and Planetary Astrophysics · Physics 2021-05-05 Christopher Mankovich , Jim Fuller

Uranus and Saturn share similarities in terms of their atmospheric composition, which is primarily made up of hydrogen and helium, as well as their ring systems. Uranus has 13 known rings, which are divided into narrow main rings, dusty…

Earth and Planetary Astrophysics · Physics 2023-09-22 Hua-Shan Shih , Wing-Huen Ip

The Cassini mission provided key measurements needed to determine the absolute age of Saturn's rings, including the extrinsic micrometeoroid flux at Saturn, the volume fraction of non-icy pollutants in the rings, and the total ring mass.…

Earth and Planetary Astrophysics · Physics 2023-05-24 R. H. Durisen , Paul. R. Estrada

Seismology of the gas giants holds the potential to resolve long-standing questions about their internal structure and rotation state. We construct a family of Saturn interior models constrained by the gravity field and compute their…

Earth and Planetary Astrophysics · Physics 2019-01-23 Christopher Mankovich , Mark S. Marley , Jonathan J. Fortney , Naor Movshovitz

The G ring arc hosts the smallest satellite of Saturn, Aegaeon, observed with a set of images sent by Cassini spacecraft. Along with Aegaeon, the arc particles are trapped in a 7:6 corotation eccentric resonance with the satellite Mimas.…

Earth and Planetary Astrophysics · Physics 2018-02-07 Gustavo Madeira , R. Sfair , D. C. Mourão , S. M. Giuliatti Winter

The Cassini spacecraft provided key measurements during its more than twelve year mission that constrain the absolute age of Saturn's rings. These include the extrinsic micrometeoroid flux at Saturn, the volume fraction of non-icy…

Earth and Planetary Astrophysics · Physics 2023-05-24 Paul R. Estrada , Richard. H. Durisen

Voyager images and Cassini occultation data have previously shown that the behavior of the outer edge of Saturn's massive B ring is determined only in part by a static response to the 2:1 inner Lindblad resonance with Mimas. In Cassini…

Earth and Planetary Astrophysics · Physics 2010-11-11 Joseph N. Spitale , Carolyn C. Porco

We present a review of Saturn's interior structure and thermal evolution, with a particular focus on work in the past 5 years. Data from the Cassini mission, including a precise determination of the gravity field from the Grand Finale…

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