4.6 Article

Reconciling Parker Solar Probe Observations and Magnetohydrodynamic Theory

期刊

ASTROPHYSICAL JOURNAL LETTERS
卷 940, 期 1, 页码 -

出版社

IOP Publishing Ltd
DOI: 10.3847/2041-8213/aca075

关键词

-

资金

  1. Italian MIUR-PRIN grant [2017APKP7T]

向作者/读者索取更多资源

The Parker Solar Probe mission presents a unique opportunity to study the characteristics of the solar wind. Recent research has revealed changes in the magnetic and velocity field fluctuations when moving away from the Sun, likely due to the effects of magnetic field fluctuations and plasma thermal expansion.
The Parker Solar Probe mission provides a unique opportunity to characterize several features of the solar wind at different heliocentric distances. Recent findings have shown a transition in the inertial range spectral and scaling properties around 0.4-0.5 au when moving away from the Sun. Here we provide, for the first time, how to reconcile these observational results on the radial evolution of the magnetic and velocity field fluctuations with two scenarios drawn from the magnetohydrodynamic theory. The observed breakdown is the result of the radial evolution of magnetic field fluctuations and plasma thermal expansion affecting the distribution between magnetic and velocity fluctuations. The two scenarios point toward an evolving nature of the coupling between fields that can be also reconciled with Kraichnan and Kolmogorov pictuFres of turbulence. Our findings have important implications for turbulence studies and modeling approaches.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.6
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据