Heating and cooling of protons by turbulence-driven ion cyclotron waves in the fast solar wind

Details Heating and cooling of protons by turbulence-driven ion cyclotron waves in the fast solar wind Heating and cooling of protons by turbulence-driven ion cyclotron waves in the fast solar wind

Feb 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999jgr...104.2521l&link_type=abstract

Journal of Geophysical Research, Volume 104, Issue A2, p. 2521-2536

Physics

Plasma Physics

87

Space Plasma Physics: Turbulence, Space Plasma Physics: Numerical Simulation Studies, Interplanetary Physics: Mhd Waves And Turbulence

Scientific paper

The effects of parallel propagating nondispersive ion cyclotron waves on the solar wind plasma are investigated in an attempt to reproduce the observed proton temperature anisotropy, namely, Tp⊥>>Tp∥ in the inner corona and Tp⊥>Tp∥. The waves provide the mechanism for the extraction of energy from the parallel direction to feed into the perpendicular direction. In our models, both Kolmogorov and Kraichnan dissipation rates yield Tp⊥>>Tp∥ in the corona, in agreement with inferences from recent ultraviolet coronal measurements, and predict temperatures at 1 AU which match in situ observations. The models also reproduce the inferred rapid acceleration of the fast solar wind in the inner corona and flow speeds and particle fluxes measured at 1 AU. Since this mechanism does not provide direct energy to the electrons, and the electron-proton coupling is not sufficient to heat the electrons to temperatures at or above 106K, this model yields electron temperatures which are much cooler than those currently inferred from observations.

Affiliated with

Also associated with

No associations

Rating

Heating and cooling of protons by turbulence-driven ion cyclotron waves in the fast solar wind 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 Heating and cooling of protons by turbulence-driven ion cyclotron waves in the fast solar wind, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Heating and cooling of protons by turbulence-driven ion cyclotron waves in the fast solar wind will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-944506