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相关论文: The Origin and Evolution of Saturn, with Exoplanet…

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This paper presents a consistent description of the formation and the subsequent evolution of gaseous planets, with special attention to short-period, low-mass hot-Neptune planets characteristic of $\mu$ Ara-like systems. We show that core…

天体物理学 · 物理学 2009-11-11 I. Baraffe , Y. Alibert , G. Chabrier , W. Benz

Revealing the true nature of the gas giant planets in our Solar System is challenging. The masses of Jupiter and Saturn are about 318 and 95 Earth masses, respectively. While they mostly consist of hydrogen and helium, the total mass and…

地球与行星天体物理 · 物理学 2022-02-22 Ravit Helled , Naor Movshovitz , Nadine Nettelmann

The four major satellites of Jupiter, known as the Galilean moons, and Saturn's most massive satellite, Titan, are believed to have formed in a predominantly gaseous circum-planetary disk, during the last stages of formation of their parent…

地球与行星天体物理 · 物理学 2020-01-22 Thomas Ronnet , Anders Johansen

The origin of the regular satellites ties directly to planetary formation in that the satellites form in gas and dust disks around the giant planets and may be viewed as mini-solar systems, involving a number of closely related underlying…

地球与行星天体物理 · 物理学 2014-11-20 Ignacio Mosqueira , Paul R. Estrada , Diego Turrini

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…

天体物理学 · 物理学 2007-05-23 J. Marvin Herndon

New equations of state (EOS) for hydrogen, helium, and compounds containing heavier elements are used to construct models for the structures of the planets Jupiter and Saturn. Good agreement with the gravitational moments J2 and J4 is…

地球与行星天体物理 · 物理学 2013-07-12 Gerald I. Kerley

Jupiter's atmosphere is enriched with heavy elements by a factor of about 3 compared to proto-solar. The origin of this enrichment and whether it represent the bulk composition of the planetary envelope remain unknown. Internal structure…

地球与行星天体物理 · 物理学 2022-03-02 Sho Shibata , Ravit Helled

The origin of Titan's atmospheric methane is a key issue for understanding the origin of the Saturnian satellite system. It has been proposed that serpentinization reactions in Titan's interior could lead to the formation of the observed…

Phase separation between hydrogen and helium at high pressures and temperatures leads to the rainout of helium in the deep interiors of Jupiter and Saturn. This process, also known as "helium rain", affects their long-term evolution.…

地球与行星天体物理 · 物理学 2024-08-28 Saburo Howard , Simon Müller , Ravit Helled

The heavy element content of giant exoplanets, inferred from structure models based on their radius and mass, often exceeds predictions based on classical core accretion. Pebble drift, coupled with volatile evaporation, has been proposed as…

地球与行星天体物理 · 物理学 2026-01-28 Barry O'Donovan , Bertram Bitsch

Gas-giant planets, such as Jupiter, Saturn and massive exoplanets, were formed via the gas accretion onto the solid cores each with a mass of roughly ten Earth masses. However, rapid radial migration due to disk-planet interaction prevents…

地球与行星天体物理 · 物理学 2021-11-24 Hiroshi Kobayashi , Hidekazu Tanaka

One of the most challenging problems we face in our understanding of planet formation is how Jupiter and Saturn could have formed before the the solar nebula dispersed. The most popular model of giant planet formation is the so-called 'core…

地球与行星天体物理 · 物理学 2015-05-14 H. F. Levison , E. Thommes , M. J. Duncan

We use a population synthesis model that includes pebbles and gas accretion, planetary migration, and a simplified chemistry scheme to study the formation of hot-Jupiters. Models have been proposed that these planets can either originate…

地球与行星天体物理 · 物理学 2017-03-22 Mohamad Ali-Dib

Here we show that Iapetus can serve to discriminate between satellite formation models. Its accretion history can be understood in terms of a two-component gaseous subnebula, with a relatively dense inner region, and an extended tail out to…

地球与行星天体物理 · 物理学 2015-05-13 Ignacio Mosqueira , Paul R. Estrada , Sebastien Charnoz

Giant planets are thought to have cores in their deep interiors, and the division into a heavy-element core and hydrogen-helium envelope is applied in both formation and structure models. We show that the primordial internal structure…

地球与行星天体物理 · 物理学 2017-05-03 Ravit Helled , David Stevenson

There is a long-standing debate regarding the origin of the terrestrial planets' water as well as the hydrated C-type asteroids. Here we show that the inner Solar System's water is a simple byproduct of the giant planets' formation. Giant…

地球与行星天体物理 · 物理学 2017-09-05 Sean N. Raymond , Andre Izidoro

We describe a scenario of Titan's formation matching the constraints imposed by its current atmospheric composition. Assuming that the abundances of all elements, including oxygen, are solar in the outer nebula, we show that the icy…

The details of the Solar system's formation are still heavily debated. Questions remain about the formation locations of the giant planets, and the degree to which volatile material was mixed throughout the proto-planetary system. One…

地球与行星天体物理 · 物理学 2013-02-20 Lucyna Kedziora-Chudczer , Jeremy Bailey , Jonathan Horner

Jupiter's atmosphere is enriched in C, N, S, P, Ar, Kr and Xe with respect to solar abundances by a factor of ~3. Gas Giant envelopes are mainly enriched through the dissolution of solids in the atmosphere, and this constant enrichment…

地球与行星天体物理 · 物理学 2019-11-06 Karin I. Oberg , Robin Wordsworth

We investigate the chemical composition of the solar system's giant planets atmospheres using a physical formation model with chemistry. The model incorporate disk evolution, pebbles and gas accretion, type I and II migration, simplified…

地球与行星天体物理 · 物理学 2016-12-07 Mohamad Ali-Dib