The role of Alfvenic magnetic and cross helicity in solar cosmic ray transport

Details The role of Alfvenic magnetic and cross helicity in solar cosmic ray transport The role of Alfvenic magnetic and cross helicity in solar cosmic ray transport

Oct 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990a%26a...237..504d&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 237, no. 2, Oct. 1990, p. 504-511.

Astronomy and Astrophysics

Astrophysics

15

Magnetohydrodynamic Turbulence, Radiative Transfer, Solar Cosmic Rays, Solar Magnetic Field, Interplanetary Medium, Power Spectra, Scattering Coefficients, Solar Protons

Scientific paper

The influence of the magnetic and cross helicity of the Alfvenic turbulence in a simple slab model on the cosmic ray transport parameters is discussed. The particle's mean free path against scattering lambda(t) from quasi-linear theory is calculated for different values of the spectral index of the power spectrum of magnetic irregularities. It is shown that the lambda(fit)-lambda(theory) discrepancy for solar particle events can be solved.

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