Astronomy and Astrophysics – Astrophysics
Scientific paper
Jul 1999
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999georl..26.2145n&link_type=abstract
Geophysical Research Letters, Volume 26, Issue 14, p. 2145-2148
Astronomy and Astrophysics
Astrophysics
63
Solar Physics, Astrophysics, And Astronomy: Energetic Particles, Interplanetary Physics: Interplanetary Shocks, And Astronomy: Coronal Mass Ejections, Interplanetary Physics: Plasma Waves And Turbulence
Scientific paper
We present a model of the coupled evolution of energetic ions and Alfvén waves, incorporating magnetic focusing, pitch-angle diffusion, wave amplification, and a traveling ion source. Ion transport through protonamplified waves with non-Kolmogorov spectra produces the contrasting three-stage evolution of Fe/O and He/H ratios at several MeV/amu observed by Wind/EPACT in the 20 April 1998 gradual solar energetic particle event [Tylka et al., 1999].
Ng Chee K.
Reames Donald. V.
Tylka Allan J.
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