Effect of proton-amplified waves on the evolution of solar energetic particle composition in gradual events

被引：132
作者：
Ng, CK
Reames, DV
Tylka, AJ
机构：
[1] USN, Res Lab, EO Hulburt Ctr Space Sci, Washington, DC 20375 USA
[2] NASA, Goddard Space Flight Ctr, High Energy Astrophys Lab, Greenbelt, MD 20771 USA
来源：
GEOPHYSICAL RESEARCH LETTERS | 1999年 / 26卷 / 14期
关键词：
D O I：
10.1029/1999GL900459
中图分类号：
P [天文学、地球科学];
学科分类号：
07 ;
摘要：
We present a model of the coupled evolution of energetic ions and Alfven waves, incorporating magnetic focusing, pitch-angle diffusion, wave amplification, and a traveling ion source. Ion transport through proton-amplified 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].
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页码：2145 / 2148
页数：4
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