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DOI码：10.3389/fspas.2023.1333184
发表刊物：Frontiers in Astronomy and Space Sciences
关键字：Chorus waves, Electron diffusion
摘要：In the present paper, we investigate the effects of latitude-dependent wave power spectrum on the interactions of chorus with electrons. Great errors in evaluating the electron diffusion coefficients and the resultant electron temporal evolutions are introduced by the widely adopted latitudinally constant model, compared with the latitudinally varying model. The latitudinally constant model tends to overestimate (underestimate) the diffusion coefficients for electrons below (above) 200 keV. The overestimation and underestimation are mainly confined in small to intermediate pitch angles, increase with decreasing pitch angles, and can reach up to several orders of magnitude. The large differences in diffusion coefficients significantly alter the net changes of electron phase space densities and the resultant shapes of electron pitch angle distributions. Our simulations demonstrate that the wave power spectrum distribution along the magnetic field line plays an important role in controlling the dynamics of radiation belt electrons.
合写作者：Liuyuan Li
第一作者：Yu Jiang
论文类型：期刊论文
一级学科：地球物理学
文献类型：期刊
卷号：10
是否译文：否
发表时间：2023-12-12
发布期刊链接：https://www.frontiersin.org/articles/10.3389/fspas.2023.1333184/full