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Related papers: Jupiter as a Rotating Bipolytrope

200 papers

This paper investigates the dynamics of a particle orbiting around a rotating homogeneous cube, and shows fruitful results that have implications for examining the dynamics of orbits around non-spherical celestial bodies. This study can be…

Earth and Planetary Astrophysics · Physics 2011-08-25 Xiaodong Liu , Hexi Baoyin , Xingrui Ma

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

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

Some parts of the substellar evolution, such as fragmentation of a gaseous cloud and Jupiter-like planet's cooling, are demonstrated to be impacted by Palatini $f(\bar R)$ gravity. Using simple models describing those processes we show that…

General Relativity and Quantum Cosmology · Physics 2021-11-24 Aneta Wojnar

Ultra-hot Jupiters, an extreme class of planets not found in our solar system, provide a unique window into atmospheric processes. The extreme temperature contrasts between their day- and night-sides pose a fundamental climate puzzle: how…

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

Low eccentricity, short orbital period pulsar companions may provide a probe to study novel dense and stable exoplanet internal compositions due to the potentially significant orbital evolution they experience caused by strong gravitational…

High Energy Astrophysical Phenomena · Physics 2026-04-13 Liam Colombo-Murphy , Lucas Brown , Stefano Profumo , M. Grant Roberts , Aya Westerling

The presence of rings and moons around exoplanets is likely to be one of the next great discoveries in exoplanet research. Using theories developed for the Solar System, we explore the possibility of coupled ring-moon cycles around…

Earth and Planetary Astrophysics · Physics 2025-10-29 Isabella E. Ward , Matija Ćuk

Radial velocity surveys suggest that the Solar System may be unusual and that Jupiter-like planets have a frequency <20% around solar-type stars. However, they may be much more common in one of the closest associations in the solar…

Since the discovery of the first exoplanets, those most adequate for life to begin and evolve have been sought. Due to observational bias, however, most of the discovered planets so far are gas giants, precluding their habitability.…

Earth and Planetary Astrophysics · Physics 2011-11-24 Luis Ricardo M. Tusnski , Adriana Valio

The Juno mission observed that both poles of Jupiter have polar cyclones that are surrounded by a ring of circumpolar cyclones. The North Pole holds eight circumpolar cyclones and the South Pole possesses five, with both circumpolar rings…

Earth and Planetary Astrophysics · Physics 2021-10-19 Nimrod Gavriel , Yohai Kaspi

Uranus and Neptune are still poorly understood. Their gravitational fields, rotation periods, atmosphere dynamics, and internal structures are not well determined. In this paper we present empirical structure models of Uranus and Neptune…

Earth and Planetary Astrophysics · Physics 2022-03-14 Benno A. Neuenschwander , Ravit Helled

Recent measurements of Jupiter's gravitational moments by the Juno spacecraft and seismology of Saturn's rings suggest that the primordial composition gradients in the deep interior of these planets have persisted since their formation. One…

Earth and Planetary Astrophysics · Physics 2023-11-08 J. R. Fuentes , Evan H. Anders , Andrew Cumming , Bradley W. Hindman

Inverse techniques are used to extract information about an exoplanet's atmosphere. These techniques are prone to biased results if the appropriate forward model is not used. One assumption used in a forward model is to assume that the…

Earth and Planetary Astrophysics · Physics 2022-03-30 Jake Taylor

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

More than 80 giant planets are known by mass and radius. Their interior structure in terms of core mass, number of layers, and composition however is still poorly known. An overview is presented about the core mass Mcore and envelope mass…

Earth and Planetary Astrophysics · Physics 2015-05-27 Nadine Nettelmann

We study coadjoint orbitopes, i.e. convex hulls of coadjoint orbits of a compact Lie group. We show that all the faces of such an orbitope are exposed. The face structure is studied by means of the momentum map and it is shown that every…

Representation Theory · Mathematics 2013-04-19 Leonardo Biliotti , Alessandro Ghigi , Peter Heinzner

Because the planets of a system form in a flattened disk, they are expected to share similar orbital inclinations at the end of their formation. The high-precision photometric monitoring of stars known to host a transiting planet could thus…

Earth and Planetary Astrophysics · Physics 2015-05-18 M. Gillon , X. Bonfils , B. -O. Demory , S. Seager , D. Deming , A. H. M. J. Triaud

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

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…

Earth and Planetary Astrophysics · Physics 2015-05-28 Patrick Gaulme , François-Xavier Schmider , Jean Gay , Tristan Guillot , Cedric Jacob