Heating and acceleration of coronal ions interacting with plasma waves through cyclotron and Landau resonance

Details Heating and acceleration of coronal ions interacting with plasma waves through cyclotron and Landau resonance Heating and acceleration of coronal ions interacting with plasma waves through cyclotron and Landau resonance

Jan 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001jgr...106..227m&link_type=abstract

Journal of Geophysical Research, Volume 106, Issue A1, p. 227-238

Physics

Plasma Physics

44

Interplanetary Physics: Plasma Waves And Turbulence, Interplanetary Physics: Solar Wind Plasma, Solar Physics, Astrophysics, And Astronomy: Corona, Space Plasma Physics: Wave/Particle Interactions

Scientific paper

On the basis of quasi-linear theory, the parallel and perpendicular wave heating and acceleration rates for gyrotropic particle velocity distribution functions are derived. These rates can be used in anisotropic multicomponent fluid equations, in order to describe the wave-particle interactions of ions with, for examples, kinetic Alfvén and electromagnetic or electrostatic ion cyclotron, respectively, magnetosonic waves propagating along or obliquely to the mean magnetic field. The waves of coronal origin propagating away from the Sun into the interplanetary medium can resonantly heat the solar wind ions and accelerate minor ions preferentially with respect to the protons. Such processes are required in order to explain and understand the measured characteristics of ion velocity distributions in the solar wind and to interpret the recent spectroscopic evidence obtained from EUV emission line measurements made by the Solar and Heliospheric Observatory (SOHO) spacecraft, which indicate cyclotron-resonance-related line broadenings and shifts.

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