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Related papers: Characterising Jupiter's dynamo radius using its m…

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Current structure models of Jupiter and Saturn suggest that helium becomes immiscible in hydrogen in the outer part of the planets' electrically conducting regions. This likely leads to a layer in which overturning convection is inhibited…

Earth and Planetary Astrophysics · Physics 2025-08-07 Paula N. Wulff , Hao Cao , Jonathan M. Aurnou

Spacecraft data reveal a very Earth-like Jovian magnetic field. This is surprising since numerical simulations have shown that the vastly different interiors of terrestrial and gas planets can strongly affect the internal dynamo process.…

Earth and Planetary Astrophysics · Physics 2015-06-22 T. Gastine , J. Wicht , L. Duarte , M. Heimpel , A. Becker

The new data delivered by NASA's Juno spacecraft significantly increase our understanding of Jupiter's internal dynamics. The gravity data constrain the depth of the zonal flows observed at cloud level and suggest that they slow down…

Earth and Planetary Astrophysics · Physics 2023-06-07 Johannes Wicht , Thomas Gastine , Lucia D. V. Duarte , Wieland Dietrich

The Juno mission is delivering spectacular data of Jupiter's magnetic field, while the gravity measurements finally allow constraining the depth of the winds observed at cloud level. However, to which degree the zonal winds contribute to…

Earth and Planetary Astrophysics · Physics 2019-04-17 Johannes Wicht , Thomas Gastine , Lucia D. V. Duarte

The Juno mission will measure Jupiter's magnetic field with unprecedented precision and provide a wealth of additional data that will allow to constrain the planet's interior structure and dynamics. Here we analyse 66 numerical simulations…

Earth and Planetary Astrophysics · Physics 2017-09-13 Lucia D. V. Duarte , Johannes Wicht , Thomas Gastine

The various processes which generate magnetic fields within the Jupiter system are exemplary for a large class of similar processes occurring at other planets in the solar system, but also around extrasolar planets. Jupiter's large internal…

Earth and Planetary Astrophysics · Physics 2018-06-13 Joachim Saur , Emmanuel Chané , Oliver Hartkorn

Two-dimensional simulations of hot Jupiter upper atmospheres including the planet's magnetic field are presented. The goal is to explore magnetic effects on the layer of the atmosphere that is ionized and heated by stellar EUV radiation,…

Earth and Planetary Astrophysics · Physics 2015-06-19 George B. Trammell , Zhi-Yun Li , Phil Arras

A large fraction of known Jupiter like exoplanets are inflated as compared to Jupiter. These "hot" Jupiters orbit close to their parent star and are bombarded with intense starlight. Many theories have been proposed to explain their radius…

Earth and Planetary Astrophysics · Physics 2017-11-01 Rakesh K. Yadav , Daniel P. Thorngren

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

We consider torsional Alfv\'en waves which may be excited in Jupiter's metallic hydrogen region. These axisymmetric zonal flow fluctuations have previously been examined for incompressible fluids in the context of Earth's liquid iron core.…

Earth and Planetary Astrophysics · Physics 2019-05-29 Kumiko Hori , Robert J. Teed , Chris A Jones

Jupiter's weather layer exhibits long-term and quasi-periodic cycles of meteorological activity that can completely change the appearance of its belts and zones. There are cycles with intervals from 4 to 9 years, dependent on the latitude,…

Earth and Planetary Astrophysics · Physics 2023-05-23 Kumiko Hori , Chris A. Jones , Arrate Antuñano , Leigh N. Fletcher , Steven M. Tobias

Magnetic sounding using data collected from the Juno mission can be used to provide constraints on Jupiter's interior. However, inwards continuation of reconstructions assuming zero electrical conductivity and a representation in spherical…

Earth and Planetary Astrophysics · Physics 2024-05-06 Philip W. Livermore , Leyuan Wu , Longwei Chen , Sjoerd A. L. de Ridder

Updated formation and structure models of Jupiter predict a metal-poor envelope. This is at odds with the two to three times solar metallicity measured by the Galileo probe. Additionally, Juno data imply that water and ammonia are enriched.…

Earth and Planetary Astrophysics · Physics 2024-03-26 Simon Müller , Ravit Helled

Juno Microwave Radiometer (MWR) observations of Jupiter's mid-latitudes reveal a strong correlation between brightness temperature contrasts and zonal winds, confirming that the banded structure extends throughout the troposphere. However,…

Earth and Planetary Astrophysics · Physics 2021-10-28 L. N. Fletcher , F. A. Oyafuso , M. Allison , A. Ingersoll , L. Li , Y. Kaspi , E. Galanti , M. H. Wong , G. S. Orton , K. Duer , Z. Zhang , C. Li , T. Guillot , S. M. Levin , S. Bolton

Hot Jupiters have proven themselves to be a rich class of exoplanets which test our theories of planetary evolution and atmospheric dynamics under extreme conditions. Here, we present three-dimensional magnetohydrodynamic simulations and…

Earth and Planetary Astrophysics · Physics 2017-09-21 T. M. Rogers , J. N. McElwaine

The Juno spacecraft has acquired exceptionally precise data on Jupiter's gravity field, offering invaluable insights into Jupiter's tidal response, interior structure, and dynamics, establishing crucial constraints. We develop a new model…

Earth and Planetary Astrophysics · Physics 2023-11-07 Hachem Dhouib , Clément Baruteau , Stéphane Mathis , Florian Debras , Aurélie Astoul , Michel Rieutord

The ongoing NASA's Juno mission puts new constraints on the internal dynamics of Jupiter. Data gathered by its onboard magnetometer reveal a dipole-dominated surface magnetic field accompanied by strong localised magnetic flux patches. The…

Earth and Planetary Astrophysics · Physics 2021-05-21 T. Gastine , J. Wicht

The intriguing circumpolar cyclone pattern at Jupiter's poles raises fundamental questions about how these systems are organized vertically and, further, how the planet's internal heat shapes and sustains them in the absence of solar…

Based on models derived from Earth's magnetotail, other planets with dipole magnetic fields, including Mercury, Jupiter, and Saturn, were expected to possess similar magnetotail configurations. In this traditional picture, the majority of…

Earth and Planetary Astrophysics · Physics 2026-04-29 Yan Xu , Zhonghua Yao , Frederic Allegrini , Shengyi Ye , Binzheng Zhang , Zhili Zeng , Enhao Feng , Jiuwen Sun , William Dunn , Scott Bolton

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
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