Physics – Plasma Physics
Scientific paper
Dec 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011agufmsh43c1970m&link_type=abstract
American Geophysical Union, Fall Meeting 2011, abstract #SH43C-1970
Physics
Plasma Physics
[2159] Interplanetary Physics / Plasma Waves And Turbulence, [7846] Space Plasma Physics / Plasma Energization, [7863] Space Plasma Physics / Turbulence, [7867] Space Plasma Physics / Wave/Particle Interactions
Scientific paper
Recently, we analyzed the quasi-2D turbulent cascade in the solar wind at the proton kinetic scales with the help of hybrid numerical simulations (particle protons and fluid electrons). We found current sheets rapidly growing on the time scale of the proton gyration. The variations of the electric field associated with the sheets can demagnetize the protons and increase their thermal energy. The proton heating is preferentially across the mean magnetic field, as observed in the solar wind. However, the limitations of our initial model did not allow us to test our results against the observations directly. We will examine this subject further under more realistic conditions. In particular, we will consider how increasingly small fluctuation intensity at the kinetic scales affects the heating mechanism.
Chandran Benjamin D.
Markovskii S.
Vasquez Bernard J.
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