A close‐up view of Jupiter's magnetic field from Juno: New insights into the planet's deep interior

The first results from the Juno mission magnetometer have recently become available. Juno provides us with the closest view of any planetary dynamo, flying to within 1.25 of the radius of the dynamo region, whereas for the Earth, we cannot get closer than 1.83 of the core‐mantle boundary radius. We...

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Bibliographic Details
Published in:Geophysical research letters 2017-06, Vol.44 (11), p.5355-5359
Main Authors: Jones, Chris A., Holme, Richard
Format: Article
Language:English
Subjects:
Core-mantle boundary
Data
Earth
Earth mantle
Flight
Flux
Hydrogen
Juno
Jupiter
Jupiter probes
Jupiter surface
Magnetic field
Magnetic fields
magnetometer
Magnetometers
Metallic hydrogen
Patches (structures)
Planetary magnetic fields
Poles
Simulation
Space missions
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Summary:The first results from the Juno mission magnetometer have recently become available. Juno provides us with the closest view of any planetary dynamo, flying to within 1.25 of the radius of the dynamo region, whereas for the Earth, we cannot get closer than 1.83 of the core‐mantle boundary radius. We compare the Juno results with those from first principles dynamo simulations of Jupiter's magnetic field. Intense flux patches at Jupiter's surface are found in both the data and the simulations, though the simulations have them mainly at slightly higher latitudes than the observations. We consider the prospects for determining more accurately the location of the top of the metallic hydrogen region and the implications of possible weak flux patches at the poles. Key Point New insights into Jupiter's deep interior
ISSN:0094-8276
1944-8007
DOI:10.1002/2017GL074200