论文标题
太阳风在1 au处的双峰分布
Bimodal distribution of the solar wind at 1 AU
论文作者
论文摘要
在这里,我们的目标是将出现在1 AU的慢速和快速太阳风的两个主要贡献分开。提出了双高斯函数作为太阳风的两个主要组成部分的概率分布函数。每条简单的高斯曲线的峰位置与太阳风的每个贡献的典型值有关。我们在整个数据集和年度系列中使用了高级组成资源管理器(ACE)任务中的整个数据集。太阳周期依赖性被认为为不同参数的典型值提供了更准确的结果。太阳风在1 Au处的分布显然是双峰的,不仅是速度,而且对于质子密度,温度和磁场而言。提出了在1 au处太阳风的慢速和快速组件的主要参数的新典型值。
Here we aim to separate the two main contributions of slow and fast solar wind that appear at 1 AU. The Bi-Gaussian function is proposed as the probability distribution function of the two main components of the solar wind. The positions of the peaks of every simple Gaussian curve are associated with the typical values of every contribution to solar wind. We used the entire data set from the Advanced Composition Explorer (ACE) mission in an analysis of the data set as a whole and as yearly series. Solar cycle dependence is considered to provide more accurate results for the typical values of the different parameters. The distribution of the solar wind at 1 AU is clearly bimodal, not only for velocity, but also for proton density, temperature and magnetic field. New typical values for the main parameters of the slow and fast components of the solar wind at 1 AU are proposed.