Journal
ANNUAL REVIEW OF EARTH AND PLANETARY SCIENCES, VOL 48, 2020
Volume 48, Issue -, Pages 465-489Publisher
ANNUAL REVIEWS
DOI: 10.1146/annurev-earth-081619-052855
Keywords
giant planets; planet formation; equations of state; planet composition; gravitational moments; planetary magnetism
Funding
- NASA
Ask authors/readers for more resources
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 similar to 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. Juno's mission reveals Jupiter's interior. A core exists but is diluted by hydrogen. The mission revealed wind depth and magnetic field.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available