Premium
Juno observations of large‐scale compressions of Jupiter's dawnside magnetopause
Author(s) -
Gershman Daniel J.,
DiBraccio Gina A.,
Connerney John E. P.,
Hospodarsky George,
Kurth William S.,
Ebert Robert W.,
Szalay Jamey R.,
Wilson Robert J.,
Allegrini Frederic,
Valek Phil,
McComas David J.,
Bagenal Fran,
Levin Steve,
Bolton Scott J.
Publication year - 2017
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 - 10.1002/2017gl073132
Subject(s) - magnetopause , magnetosphere , magnetosheath , physics , geophysics , solar wind , magnetosphere of saturn , magnetic reconnection , magnetosphere of jupiter , bow shock (aerodynamics) , jupiter (rocket family) , spacecraft , magnetic field , astronomy , mechanics , shock wave , quantum mechanics
Abstract We investigate the structure of Jupiter's dawnside magnetopause using observations obtained by particle and fields instrumentation on the Juno spacecraft. Characterization of Jupiter's magnetopause is critical for the understanding of mass and energy transport between the solar wind and the magnetosphere. We find an extended magnetopause boundary layer (MPBL) during a magnetopause crossing on 14 July 2016. This thick MPBL, in combination with a large magnetic field component normal to the magnetopause boundary, suggests that strong magnetospheric compression enhances mass transport across the magnetopause via magnetic reconnection. We further identify ~2 h increases in the total magnetospheric pressure adjacent to the magnetopause on 14 July 2016 and 1 August 2016. These large‐scale structures provide evidence of focused energy transport into the magnetosphere via magnetohydrodynamic structures.