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Jupiter's Interior as Revealed by Juno

Stevenson, David J. (2020) Jupiter's Interior as Revealed by Juno. Annual Review of Earth and Planetary Sciences, 48 . pp. 465-489. ISSN 0084-6597. https://resolver.caltech.edu/CaltechAUTHORS:20200218-100841268

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Abstract

Jupiter is in the class of planets that we call gas giants, not because they consist of gas but because they were primarily made from hydrogen-helium gas, which upon gravitational compression becomes a metallic fluid.  Juno, in orbit about Jupiter since 2016, has changed our view: The gravity data are much improved, and the simplest interpretation of the higher order even harmonics implies that the planet may have a diluted central concentration of heavy elements.  Jupiter has strong winds extending to perhaps ∼3,000-km depth that are evident in the odd zonal harmonics of the gravity field. Jupiter's distinctive magnetic field displays some limited local structure, most notably the Great Blue Spot (a region of downward flux near the equator), and some evidence for secular variation, possibly arising from the winds. However, Juno is ongoing; it has not answered all questions and has posed new ones.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.1146/annurev-earth-081619-052855DOIArticle
ORCID:
AuthorORCID
Stevenson, David J.0000-0001-9432-7159
Additional Information:© 2020 by Annual Reviews. Review in Advance first posted on February 11, 2020. This review was made possible by the existence of a highly successful spacecraft mission, mostly funded through NASA by US taxpayers. The results summarized here would not have been possible without the efforts of numerous scientists and engineers participating in the Juno mission. The author is not aware of any affiliations, memberships, funding, or financial holdings that might be perceived as affecting the objectivity of this review.
Group:Astronomy Department
Funders:
Funding AgencyGrant Number
NASAUNSPECIFIED
Subject Keywords:giant planets, planet formation, equations of state, planet composition, gravitational moments, planetary magnetism
Record Number:CaltechAUTHORS:20200218-100841268
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20200218-100841268
Official Citation:Jupiter's Interior as Revealed by Juno. David J. Stevenson. Annual Review of Earth and Planetary Sciences 2020 48:1, 465-489; doi: 10.1146/annurev-earth-081619-052855
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:101318
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:18 Feb 2020 18:16
Last Modified:02 Jun 2020 17:02

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