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Related papers: The Origin and Evolution of Saturn: A Post-Cassini…

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As it has already done for Earth, the sun, and the stars, seismology has the potential to radically change the way the interiors of giant planets are studied. In a sequence of events foreseen by only a few, observations of Saturn's rings by…

Earth and Planetary Astrophysics · Physics 2020-07-28 Christopher R. Mankovich

The evolution of protoplanetary discs embedded in stellar clusters depends on the age and the stellar density in which they are embedded. Stellar clusters of young age and high stellar surface density destroy protoplanetary discs by…

Earth and Planetary Astrophysics · Physics 2017-12-20 Nelson Ndugu , Bertram Bitsch , Edward Jurua

Giant planets dominate the mass of many planetary systems, including the Solar System, and represent the best-characterized class of extrasolar planets. Understanding the formation of giant planets bridges the high mass end of the planet…

Earth and Planetary Astrophysics · Physics 2025-01-24 Andrew N. Youdin , Zhaohuan Zhu

Planets with sizes between those of Earth and Neptune divide into two populations: purely rocky bodies whose atmospheres contribute negligibly to their sizes, and larger gas-enveloped planets possessing voluminous and optically thick…

Earth and Planetary Astrophysics · Physics 2015-09-09 Rebekah I. Dawson , Eugene Chiang , Eve J. Lee

The incredible longevity of Cassini's orbital mission at Saturn has provided the most comprehensive exploration of a seasonal giant planet to date. This review explores Saturn's changing global temperatures, composition, and aerosol…

Earth and Planetary Astrophysics · Physics 2023-05-09 L. N. Fletcher , L. Sromovsky , V. Hue , J. I. Moses , S. Guerlet , R. A. West , T. Koskinen

We study the possibility that the mutual interactions between Jupiter and Saturn prevented Type II migration from driving these planets much closer to the Sun. Our work extends previous results by Masset and Snellgrove (2001), by exploring…

Astrophysics · Physics 2007-05-23 Morbidelli Alessandro , Aurelien Crida

Aspects of our Solar System's formation are deduced from observations of the chemical nature of matter. Massive cores are indicative of terrestrial-planet-composition-similarity to enstatite chondrite meteorites, whose highly-reduced state…

Astrophysics · Physics 2007-05-23 J. Marvin Herndon

Under the core-accretion model, gas giants form via runaway accretion. This process starts when the mass of the accreted envelope becomes equal to the mass of the core. Here, we model a population of warm sub-Saturns to search for imprints…

Earth and Planetary Astrophysics · Physics 2025-11-26 Luis Thomas , Louise D. Nielsen , Lorena Acuña-Aguirre , Alex Cridland

Observations and models of giant planets indicate that such objects are enriched in heavy elements compared to solar abundances. The prevailing view is that giant planets accreted multiple Earth masses of heavy elements after the end of…

Earth and Planetary Astrophysics · Physics 2022-05-18 Linn E. J. Eriksson , Thomas Ronnet , Anders Johansen , Ravit Helled , Claudio Valletta , Antoine C. Petit

We study the dynamical evolution of Jupiter and Saturn embedded in a gaseous, solar-nebula-type disc by means of hydrodynamics simulations with the FARGO2D1D code. We study the evolution for different initial separations of the planets'…

Earth and Planetary Astrophysics · Physics 2020-02-05 Raul O. Chametla , Gennaro D'Angelo , Mauricio Reyes-Ruiz , F. Javier Sanchez-Salcedo

The origin of Saturn's inner mid-sized moons (Mimas, Enceladus, Tethys, Dione and Rhea) and Saturn's rings is debated. Charnoz et al. (2010) introduced the idea that the smallest inner moons could form from the spreading of the rings' edge…

Several mechanisms have been proposed to explain the formation process of satellite systems, and relatively large moons are thought to be born in circumplanetary disks. Making a single-moon system is known to be more difficult than…

Earth and Planetary Astrophysics · Physics 2020-03-12 Yuri I. Fujii , Masahiro Ogihara

We compute grids of radiative-convective model atmospheres for Jupiter, Saturn, Uranus, and Neptune over a range of intrinsic fluxes and surface gravities. The atmosphere grids serve as an upper boundary condition for models of the thermal…

Earth and Planetary Astrophysics · Physics 2015-05-20 J. J. Fortney , M. Ikoma , N. Nettelmann , T. Guillot , M. S. Marley

Understanding the origin and long-term evolution of the Solar System is a fundamental goal of planetary science and astrophysics. This chapter describes our current understanding of the key processes that shaped our planetary system,…

Earth and Planetary Astrophysics · Physics 2024-04-24 Sean N. Raymond

Planet formation models have been developed during the last years in order to try to reproduce the observations of both the solar system, and the extrasolar planets. Some of these models have partially succeeded, focussing however on…

Earth and Planetary Astrophysics · Physics 2015-06-16 Y. Alibert , F. Carron , A. Fortier , S. Pfyffer , W. Benz , C. Mordasini , D. Swoboda

The Cassini spacecraft revealed the spectacular, highly irregular shapes of the small inner moons of Saturn, ranging from the unique "ravioli-like" forms of Pan and Atlas to the highly elongated structure of Prometheus. Closest to Saturn,…

Earth and Planetary Astrophysics · Physics 2018-05-23 Adrien Leleu , Martin Jutzi , Martin Rubin

Using astrometric observations spanning more than a century and including a large set of Cassini data, we determine Saturn's tidal parameters through their current effects on the orbits of the eight main and four coorbital moons. We have…

Kepler's observation shows that many of the detected planets are super-Earths. They are inside a range of critical masses overlapping the core masses (2-20 $M_{\bigoplus}$), which would trigger the runaway accretion and develop the gas…

Earth and Planetary Astrophysics · Physics 2021-12-08 Wei Zhong , Cong Yu

Firstly, we study the final masses of giant planets growing in protoplanetary disks through capture of disk gas, by employing an empirical formula for the gas capture rate and a shallow disk gap model, which are both based on hydrodynamical…

Earth and Planetary Astrophysics · Physics 2016-06-01 Takayuki Tanigawa , Hidekazu Tanaka

Many small moonlets, creating propeller structures, have been found in Saturn's rings by the Cassini spacecraft. We study the dynamical evolution of such 20-50m sized bodies which are embedded in Saturn's rings. We estimate the importance…

Earth and Planetary Astrophysics · Physics 2010-11-23 Hanno Rein , John C. B. Papaloizou