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The hidden mysteries of our ice giant planets [PDF]

open access: yesNature Communications
Nearly 40 years have passed since Voyager 2 visited the ice giant planets Uranus and Neptune, yet many fundamental questions about these worlds remains unresolved.
Kyla de Villa, Huazhi Ge
doaj   +2 more sources

Dynamical Interactions and Mass Loss within the Uranian System

open access: yesThe Planetary Science Journal, 2023
The origin and evolution of planetary rings and moons remains an active area of study, particularly as they relate to the impact history and volatile inventory of the outer solar system.
Stephen R. Kane, Zhexing Li
doaj   +1 more source

Examining Uranus’ ζ Ring in Voyager 2 Wide-angle Camera Observations: Quantifying the Ring’s Structure in 1986 and Its Modifications Prior to the Year 2007

open access: yesThe Planetary Science Journal, 2023
The ζ ring is the innermost component of the Uranian ring system. It is of scientific interest because its morphology changed significantly between the Voyager 2 encounter in 1986 and subsequent Earth-based observations around 2007.
M. M. Hedman   +5 more
doaj   +1 more source

Planetary formation and early phases

open access: yesComptes Rendus. Physique, 2023
Planets form in proto-planetary disks. In this review, we describe the structure and properties of such disks, and the various phenomenons that lead to the final product: a planetary system. First, micrometre dust settles and coagulates.
Crida, Aurélien
doaj   +1 more source

Simulating Secondary Electron and Ion Emission from the Cassini Spacecraft in Saturn’s Ionosphere

open access: yesThe Planetary Science Journal, 2023
The Cassini spacecraft’s Grand Finale flybys through Saturn’s ionosphere provided unprecedented insight into the composition and dynamics of the gas giant’s upper atmosphere and a novel and complex spacecraft–plasma interaction.
Z. Zhang   +5 more
doaj   +1 more source

Earth-based Stellar Occultation Predictions for Jupiter, Saturn, Uranus, Neptune, Titan, and Triton: 2023–2050

open access: yesThe Planetary Science Journal, 2023
In support of studies of decadal-timescale evolution of outer solar system atmospheres and ring systems, we present detailed Earth-based stellar occultation predictions for Jupiter, Saturn, Uranus, Neptune, Titan, and Triton for 2023–2050,
Richard G. French, Damya Souami
doaj   +1 more source

Planetary Rings [PDF]

open access: yesSymposium - International Astronomical Union, 1980
Observations of the Rings of Saturn from the Pioneer spacecraft, discovery of the Ring of Jupiter, ground based polarimetry of the Rings of Saturn and some theoretical studies may be combined to markedly advance our understanding of the Rings of Jupiter, Saturn and Uranus.
openaire   +1 more source

Gap-opening Planets Make Dust Rings Wider

open access: yesThe Astrophysical Journal, 2023
As one of the most commonly observed disk substructures, dust rings from high-resolution disk surveys appear to have different radial widths. Recent observations on PDS 70 and AB Aur reveal not only planets in the disk, but also the accompanying wide ...
Jiaqing Bi, Min-Kai Lin, Ruobing Dong
doaj   +1 more source

Rings in the haloes of planetary nebulae [PDF]

open access: yesAstronomy & Astrophysics, 2004
10pp., 4 figs, accepted by A&A main ...
Corradi, R.L.M.   +4 more
openaire   +4 more sources

A Recent Impact Origin of Saturn’s Rings and Mid-sized Moons

open access: yesThe Astrophysical Journal, 2023
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 previous ...
L. F. A. Teodoro   +7 more
doaj   +1 more source

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