Physics
Scientific paper
Dec 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008jgre..11300b16v&link_type=abstract
Journal of Geophysical Research, Volume 113, Issue 15, CiteID E00B16
Physics
9
Planetary Sciences: Solar System Objects: Venus, Planetary Sciences: Solid Surface Planets: Magnetospheres (2756), Magnetospheric Physics: Magnetosheath, Magnetospheric Physics: Plasma Waves And Instabilities (2471)
Scientific paper
The solar wind interaction with Venus creates an induced magnetosphere around the planet. It is shown that within the space bound by Venus' bow shock and ionopause, there is a rich occurrence of mirror-mode-like structures in the magnetic field data. The dayside magnetosheath and nightside magnetosheath/wake regions are investigated separately. It is shown that the probability to observe mirror mode structures is much higher at the dayside, where it is also strongly dependent on the angle between the solar wind magnetic field and the bow shock normal. In Venus' wake the chance to observe these structures is low, most likely because of the fully developed turbulence in this region, which will decrease temperature anisotropies. The results stand in contrast to the very low occurrence rate claimed from data taken by the Pioneer Venus Orbiter mission.
Baumjohann Wolfgang
Delva Magda
Glassmeier Karl-Heintz
Volwerk Martin
Voros Zoltán
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