太阳耀斑中~3He富化的理论(英文)

Theory for ~3 He-Enrichments in Solar Flares

概述了太阳3He富化的一个完整的两阶段加速模型。具有适当带电状态的太阳粒子 ,例如3He,电子和一些重离子主要由频率为ω =2Ω3He的氢回旋波所加热。这些被预热的粒子进而在费米加速过程中被加速到高的能量。这一自洽的模型解释了加速的各个方面 ,并预言了粒子的丰度 ,加热离子的带电状态 ,以及其能谱与观测相符和的结果。

A complete two-stage acceleration model for solar 3 He-enrichment is surveyed.Solar particles such as 3 He,electrons and heavy ions with appropriate charge states are significantly heated by the H cyclotron waves with frequency ω=2Ω 3He preferentially.Those preheated particles are further accelerated to high energies in the Fermi acceleration process.This model self-consistently explains various aspects of accelerations and predicts results on particle abundances,heavy ion charge states,and energy spectra in agreement with observations