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Heavy elements, even though its smaller constituent, are crucial to understand Jupiter formation history. Interior models are used to determine the amount of heavy elements in Jupiter interior, nevertheless this range is still subject to…

Earth and Planetary Astrophysics · Physics 2016-12-14 Yamila Miguel , Tristan Guillot , Lucile Fayon

The equation of state of hydrogen, helium, and water effects interior structure models of giant planets significantly. We present a new equation of state data table, LM-REOS, generated by large scale quantum molecular dynamics simulations…

Astrophysics · Physics 2008-11-07 N. Nettelmann , B. Holst , A. Kietzmann , M. French , R. Redmer , D. Blaschke

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…

Earth and Planetary Astrophysics · Physics 2012-05-04 Nadine Nettelmann , Andreas Becker , Bastian Holst , Ronald Redmer

Probing the interiors of the gas giant planets in our Solar System is not an easy task. It requires a set of accurate measurements combined with theoretical models that are used to infer the planetary composition and its depth dependence.…

Earth and Planetary Astrophysics · Physics 2018-12-19 Ravit Helled

The Juno mission has provided measurements of Jupiter s gravity field with an outstanding level of accuracy, leading to better constraints on the interior of the planet. Improving our knowledge of the internal structure of Jupiter is key to…

Earth and Planetary Astrophysics · Physics 2023-03-29 S. Howard , T. Guillot , M. Bazot , Y. Miguel , D. J. Stevenson , E. Galanti , Y. Kaspi , W. B. Hubbard , B. Militzer , R. Helled , N. Nettelmann , B. Idini , S. Bolton

This article provides an overview of how models of giant planet interiors are constructed. We review measurements from past space missions that provide constraints for the interior structure of Jupiter. We discuss typical three-layer…

Earth and Planetary Astrophysics · Physics 2016-10-19 Burkhard Militzer , Francois Soubiran , Sean M. Wahl , William Hubbard

In anticipation of new observational results for Jupiter's axial moment of inertia and gravitational zonal harmonic coefficients from the forthcoming Juno orbiter, we present a number of preliminary Jupiter interior models. We combine…

Earth and Planetary Astrophysics · Physics 2016-04-06 W. B. Hubbard , B. Militzer

While Jupiter's massive gas envelope consists mainly of hydrogen and helium, the key to understanding Jupiter's formation and evolution lies in the distribution of the remaining (heavy) elements. Before the Juno mission, the lack of…

Using density functional molecular dynamics simulations, we determine the equation of state for hydrogen-helium mixtures spanning density-temperature conditions typical of giant planet interiors, ~0.2-9 g/cc and 1000-80000 K for a typical…

Earth and Planetary Astrophysics · Physics 2015-06-15 B. Militzer , W. B. Hubbard

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…

Astrophysics · Physics 2009-11-13 B. Militzer , W. B. Hubbard , J. Vorberger , I. Tamblyn , S. A. Bonev

Observations of Jupiter's gravity field by Juno have revealed surprisingly small values for the high order gravitational moments, considering the abundances of heavy elements measured by Galileo 20 years ago. The derivation of recent…

Earth and Planetary Astrophysics · Physics 2019-02-27 Florian Debras , Gilles Chabrier

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…

Earth and Planetary Astrophysics · Physics 2013-07-12 Gerald I. Kerley

We present new equations of state (EOS) for hydrogen and helium covering a wide range of temperatures from 60 K to 10$^7$ K and densities from $10^{-10}$ g/cm$^3$ to $10^3$ g/cm$^3$. They include an extended set of ab initio EOS data for…

Earth and Planetary Astrophysics · Physics 2014-12-04 Andreas Becker , Winfried Lorenzen , Jonathan J. Fortney , Nadine Nettelmann , Manuel Schöttler , Ronald Redmer

The microwave radiometer aboard the Juno spacecraft provided a measurement of the water abundance found to range between 1 and 5.1 times the protosolar abundance of oxygen in the near-equatorial region of Jupiter. Here, we aim to combine…

Earth and Planetary Astrophysics · Physics 2021-09-29 Olivier Mousis , Jonathan I. Lunine , Artyom Aguichine

The Juno spacecraft has measured Jupiter's low-order, even gravitational moments, $J_2$--$J_8$, to an unprecedented precision, providing important constraints on the density profile and core mass of the planet. Here we report on a selection…

Earth and Planetary Astrophysics · Physics 2017-07-10 S. M. Wahl , W. B. Hubbard , B. Militzer , T. Guillot , Y. Miguel , N. Movshovitz , Y. Kaspi , R. Helled , D. Reese , E. Galanti , S. Levin , J. E. Connerney , S. J. Bolton

First-principle modeling of dense hydrogen is crucial in materials and planetary sciences. Despite its apparent simplicity, predicting the ionic and electronic structure of hydrogen is a formidable challenge, and it is connected with the…

Earth and Planetary Astrophysics · Physics 2026-05-20 Cesare Cozza , Kousuke Nakano , Saburo Howard , Hao Xie , Ravit Helled , Guglielmo Mazzola

The core accretion model for giant planet formation suggests a two layer picture for the initial structure of Jovian planets, with heavy elements in a dense core and a thick H-He envelope. Late planetesimal accretion and core erosion could…

Earth and Planetary Astrophysics · Physics 2016-09-21 Francois Soubiran , Burkhard Militzer

Interior models of Jupiter and Saturn are calculated and compared in the framework of the three-layer assumption, which rely on the perception that both planets consist of three globally homogeneous regions: a dense core, a metallic…

Astrophysics · Physics 2009-10-31 Tristan Guillot

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…

Earth and Planetary Astrophysics · Physics 2017-03-08 Michael Lozovsky , Ravit Helled , Eric D. Rosenberg , Peter Bodenheimer

Revealing the internal composition and structure of giant planets is fundamental for understanding planetary formation. However, the bulk composition can only be inferred through interior models. As a result, advancements in modelling…

Earth and Planetary Astrophysics · Physics 2025-01-08 Saburo Howard , Ravit Helled , Simon Müller
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