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Large amplitude nonlinear waves in Venus magnetosheath
Author(s) -
Golbraikh E.,
Gedalin M.,
Balikhin M.,
Zhang T. L.
Publication year - 2013
Publication title -
journal of geophysical research: space physics
Language(s) - English
Resource type - Journals
eISSN - 2169-9402
pISSN - 2169-9380
DOI - 10.1002/jgra.50094
Subject(s) - magnetosheath , gyroradius , bow shock (aerodynamics) , physics , bow wave , amplitude , venus , magnetic field , nonlinear system , convection , shock wave , magnetosphere , geophysics , mechanics , computational physics , classical mechanics , solar wind , magnetopause , optics , instability , astrobiology , quantum mechanics
Large‐amplitude variations of the magnetic field in the Venusian magnetosheath are observed when the distance between the bow shock and the magnetic pileup boundary is small, of the order of the ion convective gyroradius. It is proposed that these oscillations are nonlinear standing waves. A theoretical model is developed within one‐dimensional two‐fluid hydrodynamics, which is in good agreement with the observed features of the structure.