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On the Relation Between Jovian Aurorae and the Loading/Unloading of the Magnetic Flux: Simultaneous Measurements From Juno, Hubble Space Telescope, and Hisaki
Author(s) -
Yao Z. H.,
Grodent D.,
Kurth W. S.,
Clark G.,
Mauk B. H.,
Kimura T.,
Bonfond B.,
Ye S.Y.,
Lui A. T.,
Radioti A.,
Palmaerts B.,
Dunn W. R.,
Ray L. C.,
Bagenal F.,
Badman S. V.,
Rae I. J.,
Guo R. L.,
Pu Z. Y.,
Gérard J.C.,
Yoshioka K.,
Nichols J. D.,
Bolton S. J.,
Levin S. M.
Publication year - 2019
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/2019gl084201
Subject(s) - magnetosphere , jovian , physics , flux (metallurgy) , astrophysics , jupiter (rocket family) , hubble space telescope , magnetic reconnection , magnetic field , magnetic flux , astronomy , spacecraft , geophysics , saturn , planet , quantum mechanics , stars , materials science , metallurgy
We present simultaneous observations of aurorae at Jupiter from the Hubble Space Telescope and Hisaki, in combination with the in situ measurements of magnetic field, particles, and radio waves from the Juno Spacecraft in the outer magnetosphere, from ~ 80 R J to 60 R J during 17 to 22 March 2017. Two cycles of accumulation and release of magnetic flux, named magnetic loading/unloading, were identified during this period, which correlate well with electron energization and auroral intensifications. Magnetic reconnection events are identified during both the loading and unloading periods, indicating that reconnection and unloading are independent processes. These results show that the dynamics in the middle magnetosphere are coupled with auroral variability.