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The composition of Jupiter and the primordial distribution of the heavy elements are determined by its formation history. As a result, in order to constrain the primordial internal structure of Jupiter the growth of the core and the…

地球与行星天体物理 · 物理学 2017-03-08 Michael Lozovsky , Ravit Helled , Eric D. Rosenberg , Peter Bodenheimer

Hydrogen-helium mixtures at conditions of Jupiter's interior are studied with first-principles computer simulations. The resulting equation of state (EOS) implies that Jupiter possesses a central core of 14-18 Earth masses of heavier…

天体物理学 · 物理学 2009-11-13 B. Militzer , W. B. Hubbard , J. Vorberger , I. Tamblyn , S. A. Bonev

Understanding exoplanet interiors is crucial for interpreting atmospheric observations and constraining their evolution and formation. However, due to limited observational constraints, interiors structures remain poorly understood. In this…

地球与行星天体物理 · 物理学 2025-05-22 Esther van Dijk , Yamila Miguel

As Juno is presently measuring Jupiter's gravitational moments to unprecedented accuracy, models for the interior structure of the planet are putted to the test. While equations of state based on first principles or ab initio simulations…

地球与行星天体物理 · 物理学 2024-01-01 S. Mazevet , A. Licari , F. Soubiran

With the goal of matching spacecraft measurements from Juno and Galileo missions, we construct ensembles of 2, 3, 4, 5, and 6 layer models for Jupiter's interior. All except our two layer models can match the planet's gravity field as…

地球与行星天体物理 · 物理学 2024-01-23 Burkhard Militzer , William B. Hubbard

Using the helium abundance measured by Galileo in the atmosphere of Jupiter and interior models reproducing the observed external gravitational field, we derive new constraints on the composition and structure of the planet. We conclude…

天体物理学 · 物理学 2009-10-30 Tristan Guillot , Daniel Gautier , William B. Hubbard

We construct models for Jupiter's interior that match the gravity data obtained by the Juno and Galileo spacecrafts. To generate ensembles of models, we introduce a novel quadratic Monte Carlo technique that is more efficient in confining…

地球与行星天体物理 · 物理学 2023-08-10 Burkhard Militzer

We study the constraining power of a high-precision measurement of the gravity field for Uranus and Neptune, as could be delivered by a low periapse orbiter. Our study is practical, assessing the possible deliverables and limitations of…

地球与行星天体物理 · 物理学 2022-03-25 Naor Movshovitz , Jonathan J. Fortney

Knowledge of Jupiter's deep interior would provide unique constraints on the formation of the Solar System. Measurement of its core mass and global composition would shed light on whether the planet formed by accretion or by direct…

地球与行星天体物理 · 物理学 2015-05-28 Patrick Gaulme , François-Xavier Schmider , Jean Gay , Tristan Guillot , Cedric Jacob

'Empirical' models (pressure vs. density) of Uranus and Neptune interiors constrained by the gravitational coefficients J_2, J_4, the planetary radii and masses, and Voyager solid-body rotation periods are presented. The empirical…

地球与行星天体物理 · 物理学 2015-05-20 Ravit Helled , John D. Anderson , Morris Podolak , Gerald Schubert

Observations from the Juno spacecraft show that Jupiter has a large dilute core rather than a compact core. To investigate the effects of different core structures on wave propagation and transmission in Jupiter's interior, we consider…

地球与行星天体物理 · 物理学 2025-05-14 Yuru Xu , Xing Wei

Jupiter's internal flow structure is still not fully known, but can be now better constrained due to Juno's high-precision measurements. The recently published gravity and magnetic field measurements have led to new information regarding…

地球与行星天体物理 · 物理学 2019-07-17 Keren Duer , Eli Galanti , Yohai Kaspi

The amount and distribution of heavy elements in Jupiter gives indications on the process of its formation and evolution. Core mass and metallicity predictions however depend on the equations of state used, and on model assumptions. We…

地球与行星天体物理 · 物理学 2012-05-04 Nadine Nettelmann , Andreas Becker , Bastian Holst , Ronald Redmer

Recently two groups used first-principles computer simulations to model Jupiter's interior. While both studies relied on the same simulation technique, density functional molecular dynamics, the groups derived very different conclusions. In…

天体物理学 · 物理学 2009-07-22 B. Militzer , W. B. Hubbard

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

We describe the current state of knowledge about Mercury's interior structure. We review the available observational constraints, including mass, size, density, gravity field, spin state, composition, and tidal response. These data enable…

地球与行星天体物理 · 物理学 2020-02-11 Jean-Luc Margot , Steven A. Hauck , Erwan Mazarico , Sebastiano Padovan , Stanton J. Peale

The Juno Orbiter has provided improved estimates of the even gravitational harmonics J2 to J8 of Jupiter. To compute higher-order moments, new methods such as the Concentric Maclaurin Spheroids (CMS) method have been developed which surpass…

地球与行星天体物理 · 物理学 2017-10-25 Nadine Nettelmann

The JUNO mission to Jupiter is planned to measure the water abundance in Jupiter's atmosphere below the cloud layer. This measurement is important because it can be used to reveal valuable information on Jupiter's origin and its…

地球与行星天体物理 · 物理学 2015-06-19 Ravit Helled , Jonathan Lunine

Polytropes have long been used to model a wide variety of astrophysical objects. A bipolytrope (composite polytrope) may be used for bodies with a distinct core-envelope structure. In this short paper, I demonstrate that a rotating…

地球与行星天体物理 · 物理学 2021-09-07 Kundan Kadam

Using the clathrate hydrates trapping theory, we discuss the enrichments in volatiles in the atmosphere of Jupiter measured by the \textit{Galileo} probe in the framework of new extended core-accretion planet formation models including…

天体物理学 · 物理学 2009-11-10 Yann Alibert , Olivier Mousis , Willy Benz