Inter-species momentum transfer due to the two-stream instability in the solar wind-Venus ionosphere interaction

Details Inter-species momentum transfer due to the two-stream instability in the solar wind-Venus ionosphere interaction Inter-species momentum transfer due to the two-stream instability in the solar wind-Venus ionosphere interaction

Dec 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011agufmsa13a1869a&link_type=abstract

American Geophysical Union, Fall Meeting 2011, abstract #SA13A-1869

Physics

Plasma Physics

[2483] Ionosphere / Wave/Particle Interactions, [6295] Planetary Sciences: Solar System Objects / Venus, [7836] Space Plasma Physics / Mhd Waves And Instabilities, [7859] Space Plasma Physics / Transport Processes

Scientific paper

We study the development of the two-stream plasma instability, and the ensuing momentum transfer between species, in a four component plasma. The system is taken to represent the interaction of heavy ions and electrons of planetary origin, assumed to be initially at rest, and a stream of protons and electrons representing the solar wind. A stability criterion in terms of solar wind and ionospheric plasma parameters, namely density and temperature as well as the solar wind streaming velocity, is derived from a linear analysis of the coupled fluid equations of motion for all species. The nonlinear development of the instability is studied using a particle plasma code developed by our group. A heuristic estimation of momentum transfer between species is compared with the value derived from the acceleration of the planetary ions resulting in our numerical simulations.

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