`On the interaction between the shocked solar wind and the planetary ions on the dayside of Venus

Details `On the interaction between the shocked solar wind and the planetary ions on the dayside of Venus `On the interaction between the shocked solar wind and the planetary ions on the dayside of Venus

Nov 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995jgr...10021289s&link_type=abstract

Journal of Geophysical Research, Volume 100, Issue A11, p. 21289-21306

Physics

46

Ionosphere: Planetary Ionospheres, Magnetospheric Physics: Solar Wind Interactions With Unmagnetized Bodies, Ionosphere: Plasma Waves And Instabilities, Ionosphere: Wave/Particle Interactions

Scientific paper

Around Venus the planetary ionosphere is directly exposed to the shocked solar wind. The interaction takes place in a broad region surrounding the dayside ionosphere, called the mantle, where the shocked solar wind plasma and the plasma of planetary origin have equally important roles. In this paper both the experimentally determined characteristics and the microphysics of the mantle are discussed in detail. It is shown that as a result of the interaction between the two plasma populations, a modified two-stream instability develops, and waves are excited with a frequency of a few times the lower hybrid frequency. The polarization of the waves is almost perpendicular to the magnetic field. The stabilization of the higher-frequency part of the wave spectrum is the result of transverse wave convection in the particular sheet-like geometry of the mantle. The interaction of these waves with planetary ions and electrons is described within the framework of a nonlinear model in which the saturation of the modified two-stream instability is due to induced scattering of the waves on cold planetary ions. The effective collision frequency between the shocked solar wind protons and planetary ions is also calculated; it is shown how this leads to ion pick up and heating. Other macroscopically observable effects of these processes are electron acceleration along the magnetic field and ionospheric heating. The experimental data collected in the dayside mantle of Venus by the instruments carried onboard the Pioneer Venus Orbiter are compared to our model. It is believed that the observations support the scenario presented.

Affiliated with

Also associated with

No associations

Rating

`On the interaction between the shocked solar wind and the planetary ions on the dayside of Venus does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with `On the interaction between the shocked solar wind and the planetary ions on the dayside of Venus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and `On the interaction between the shocked solar wind and the planetary ions on the dayside of Venus will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1181384