A more viscous-like solar wind interaction with all the giant planets

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Title: A more viscous-like solar wind interaction with all the giant planets
Author(s): Masters, A
Item Type: Journal Article
Abstract: Identifying and quantifying the different drivers of energy flow through a planetarymagnetosphere is crucial for understanding how each planetary system works. The magnetosphere of ourown planet is primarily driven externally by the solar wind through global magnetic reconnection, while aviscous-like interaction with the solar wind involving growth of the Kelvin-Helmholtz (K-H) instability is asecondary effect. Here we consider the solar wind-magnetosphere interaction at all magnetized planets,exploring the implications of diverse solar wind conditions. We show that with increasing distance fromthe Sun the electric fields arising from reconnection at the magnetopause boundary of a planetarymagnetosphere become weaker, whereas the boundaries become increasingly K-H unstable. Our resultssupport the possibility of a predominantly viscous-like interaction between the solar wind and every oneof the giant planet magnetospheres, as proposed by previous authors and in contrast with the solarwind-magnetosphere interaction at Earth.
Publication Date: 16-Aug-2018
Date of Acceptance: 16-Jul-2018
URI: http://hdl.handle.net/10044/1/62793
DOI: https://dx.doi.org/10.1029/2018GL078416
ISSN: 0094-8276
Publisher: American Geophysical Union
Start Page: 7320
End Page: 7329
Journal / Book Title: Geophysical Research Letters
Volume: 45
Issue: 15
Copyright Statement: ©2018 American Geophysical Union. All Rights Reserved. An edited version of this paper was published by AGU. To view the published open abstract, go to: https://dx.doi.org/10.1029/2018GL078416
Sponsor/Funder: The Royal Society
Funder's Grant Number: UF150547
Keywords: Science & Technology
Physical Sciences
Geosciences, Multidisciplinary
Geology
solar wind
magnetosphere
magnetospheric dynamics
giant planets
KELVIN-HELMHOLTZ VORTICES
MAGNETIC RECONNECTION
PLASMA DEPLETION
MAGNETOPAUSE OBSERVATIONS
SATURNS MAGNETOSPHERES
EARTHS MAGNETOSPHERE
BOW SHOCK
MAGNETOSHEATH
JUPITERS
FLOW
MD Multidisciplinary
Meteorology & Atmospheric Sciences
Publication Status: Published
Online Publication Date: 2018-07-24
Appears in Collections:Space and Atmospheric Physics
Physics
Faculty of Natural Sciences



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