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Recent structure models of Jupiter that match Juno gravity data suggest that the planet harbours an extended region in its deep interior that is enriched in heavy elements, a so-called dilute/fuzzy core. This finding raises the question of…

Earth and Planetary Astrophysics · Physics 2020-07-01 Simon Müller , Ravit Helled , Andrew Cumming

With the recent realization that there likely are stably-stratified regions in the interiors of both Jupiter and Saturn, we construct new non-adiabatic, inhomogeneous evolutionary models with the same microphysics for each that result at…

Earth and Planetary Astrophysics · Physics 2025-01-24 Ankan Sur , Roberto Tejada Arevalo , Yubo Su , Adam Burrows

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

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…

Computed using the APPLE planetary evolution code, we present updated evolutionary models for Jupiter and Saturn that incorporate helium rain, non-adiabatic thermal structures, and "fuzzy" extended heavy-element cores. Building on our…

Earth and Planetary Astrophysics · Physics 2025-12-02 Ankan Sur , Adam Burrows , Roberto Tejada Arevalo , Yubo Su

Recent formation and structure models of Jupiter suggest that the planet can have composition gradients and not be fully convective (adiabatic). This possibility directly affects our understanding of Jupiter's bulk composition and origin.…

Earth and Planetary Astrophysics · Physics 2018-03-14 A. Vazan , R. Helled , T. Guillot

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

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

The Juno mission has revolutionized and challenged our understanding of Jupiter. As Juno transitioned to its extended mission, we review the major findings of Jupiter's internal structure relevant to understanding Jupiter's formation and…

The primordial structure of Jupiter remains uncertain, yet it holds vital clues on the planet's formation and early evolution. Recent work used dynamical constraints from Jupiter's inner moons to determine its primordial state, thereby…

Earth and Planetary Astrophysics · Physics 2026-02-04 Henrik Knierim , Konstantin Batygin , Ravit Helled , Luca Morf , Fred C. Adams

The Juno mission has provided an accurate determination of Jupiter's gravitational field, which has been used to obtain information about the planet's composition and internal structure. Several models of Jupiter's structure that fit the…

Earth and Planetary Astrophysics · Physics 2020-07-17 Shang-Fei Liu , Yasunori Hori , Simon Müller , Xiaochen Zheng , Ravit Helled , Doug Lin , Andrea Isella

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

We present updated atmospheric tables suitable for calculating the post-formation evolution and cooling of Jupiter and Jupiter-like exoplanets. These tables are generated using a 1D radiative transfer modeling code that incorporates the…

Earth and Planetary Astrophysics · Physics 2023-09-06 Yi-Xian Chen , Adam Burrows , Ankan Sur , Roberto Tejada Arevalo

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

Jupiter's atmosphere has been observed to be depleted in helium (Yatm~0.24), suggesting active helium sedimentation in the interior. This is accounted for in standard Jupiter structure and evolution models through the assumption of an…

Earth and Planetary Astrophysics · Physics 2015-06-23 N. Nettelmann , J. J. Fortney , K. Moore , C. Mankovich

New interior models of Jupiter and Saturn suggest that both planets have "fuzzy cores". These cores should be viewed as central regions that are enriched with heavy elements but are not distinct from the rest of the deep interior. These…

Earth and Planetary Astrophysics · Physics 2024-03-19 Ravit Helled , David J. Stevenson

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

Recent structure models of Jupiter suggest the existence of an extended region in the deep interior with a high heavy element abundance, referred to as a dilute core. This finding has led to increased interest in modelling the formation and…

Earth and Planetary Astrophysics · Physics 2024-12-02 Jesse Polman , Christoph Mordasini

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…

Astrophysics · Physics 2009-10-30 Tristan Guillot , Daniel Gautier , William B. Hubbard
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