Astronomy and Astrophysics – Astrophysics
Scientific paper
Aug 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008aipc.1039..252i&link_type=abstract
PARTICLE ACCELERATION AND TRANSPORT IN THE HELIOSPHERE AND BEYOND: 7th Annual International Astrophysics Conference. AIP Confer
Astronomy and Astrophysics
Astrophysics
Particle Emission, Solar Wind, Coronal Mass Ejection, Particle Acceleration, Plasma Heating By Radio-Frequency Fields, Icr, Icp, Helicons, Interplanetary Magnetic Fields, Magnetohydrodynamics And Plasmas, Convection, Turbulence, And Diffusion
Scientific paper
The specific microphysical mechanism which generates the fast solar wind in collisionless coronal holes is still not known. Observations show that the wind results from strong ion heating perpendicular to the magnetic field which starts at the very bottom of the corona. A major clue toward identifying the responsible mechanism is that it preferentially heats the heavy ions relative to the protons. Since this preferential heating occurs at heights where ion collisions are no longer effective, a kinetic treatment is necessary to understand and test any candidate mechanisms. We describe the current state of a kinetic model we are constructing which will test the preferential heating due to the resonant cyclotron interaction with parallel-propagating ion cyclotron waves.
Isenberg Philip A.
Vasquez Bernard J.
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