Large amplitude nonlinear waves in Venus magnetosheath

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 theoret...

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Bibliographic Details
Published in:Journal of geophysical research. Space physics 2013-04, Vol.118 (4), p.1706-1710
Main Authors: Golbraikh, E., Gedalin, M., Balikhin, M., Zhang, T. L.
Format: Article
Language:English
Subjects:
Astrophysics
Hydrodynamics
Magnetic fields
nonlinear standing waves
nonlinear waves
Standing waves
Venus
Venusian magnetosheath
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Summary: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. Key Points Venusian magnetosheath waves connect with distance between BS and MPBIt is proposed that these oscillations are nonlinear standing waves.One‐dimensional two fluid model is in a good agreement with measurements.
ISSN:2169-9380
2169-9402
DOI:10.1002/jgra.50094