Galactic cosmic rays in the global heliosphere: an axisymmetric model

Details Galactic cosmic rays in the global heliosphere: an axisymmetric model Galactic cosmic rays in the global heliosphere: an axisymmetric model

Sep 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003aipc..679..644f&link_type=abstract

SOLAR WIND TEN: Proceedings of the Tenth International Solar Wind Conference. AIP Conference Proceedings, Volume 679, pp. 644-6

Computer Science

Particle Emission, Solar Wind, Solar Wind Plasma, Sources Of Solar Wind

Scientific paper

We present a new axisymmetric model of the heliosphere that includes the three principal particle species (plasma with magnetic field, interstellar neutral atoms and galactic cosmic rays). An important improvement over the previous models is the kinetic description for the cosmic rays instead of the usual fluid approach. We compute the cosmic-ray diffusion coefficients from the quasi-linear theory assuming a constant power spectrum of the fluctuations in both the solar wind and the interstellar medium. Our model predicts small cosmic rays gradients implying little modification of the plasma flow, except, possibly, in the heliosheath region.

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