论文标题
关于3D太阳风速与密度模型与太阳能代理之间的一般相关性
On general correlation between 3D solar wind speed and density model and solar proxies
论文作者
论文摘要
太阳风（SW）是从太阳能电晕中的血浆中流出的，其纬度速度和密度轮廓随太阳能活动而变化。 SW质子通过流动的星际中性原子和产生高能中性原子（ENA）充电，从而带来有关在地球层边界区域内血浆物理状态的信息。 ENA的速度取决于它们的能量，因此在不同能量的观察结果可以随着时间的流逝提供有关不同时期的信息。因此，了解SW演变的历史对于理解这些信息很重要。在本文中，我们通过\ citet {porowski_etal：22a}扩展了工作，后者根据跨层次闪烁（IPS）的分析提供了SW速度和密度的纬度型号的时间演化的Wawhelioion 3DSW模型。基于主成分分析的结果，我们寻求选择的太阳能代理与从IPS获得的SW结构之间的相关性，并表明在过去三个基于代理的太阳周期中可以重现SW结构的演变。这样，我们将SW结构演变的历史延长至1976年，即当观察到关键代理的观察结果 - SW电流板和太阳极性磁场的倾斜 - 可用。我们指出了使用代理预测SW结构到未来的潜力。
The solar wind (SW) is a supersonic outflow of plasma from the solar corona, with the latitudinal speed and density profiles varying with the solar activity. The SW protons charge exchange with the inflowing interstellar neutral atoms and create energetic neutral atoms (ENAs), which bring information on the physical state of the plasma within the boundary region of the heliosphere. The speed of the ENAs depends on their energies, and consequently observations at different energies provide information on different epochs backwards in time. Therefore, understanding the history of the evolution of the SW is important to understand this information. In this paper, we extend the work by \citet{porowski_etal:22a}, who provided the WawHelioIon 3DSW model of the time evolution of latitudinal profiles of the SW speed and density based on results of analysis of interplanetary scintillations (IPS). Based on results of Principal Component Analysis, we seek for correlation between selected solar proxies and the structure of the SW obtained from IPS and show that it is possible to reproduce the evolution of the SW structure during the past three solar cycles based on the proxies. With this, we extend the history of the evolution of the SW structure back to 1976, i.e., to the epoch when observations of the key proxies -- the inclination of the SW current sheet and the solar polar magnetic fields -- became available. We point out the potential of the use of the proxies for forecasting the structure of the SW into the future.
