论文标题
从Voyager 1和2星际数据和全局地球模型推断出的局部星际磁场的大小和方向
Magnitude and direction of the local interstellar magnetic field inferred from Voyager 1 and 2 interstellar data and global heliospheric model
论文作者
论文摘要
在这封信中，我们提供了原始的方向和幅度的约束（即，与太阳的相互作用不扰动）局部星际磁场。这些约束基于对磁力计仪器1和2号航天器测量的Heliopause的星际磁场成分的分析。在我们的动力学 - 磁性水力学（MHD）模型的帮助下进行了分析。该模型表明，星际磁场的太阳引起的干扰距离太阳相对较远，直至400-500 au。该场围绕着Heliopause并压缩。通过将模型结果与Voyager数据进行比较，我们发现该模型提供了与星际磁场的数据相当的结果 $ b_ {lism} $ = 3.7-3.8 $ $ g的幅度，用于$ \ $ \ $ \ $ 125 $^\ circ $，$ \ $ \ $ \ $ \ $ 37 $^\ circ $ circ $ circ $ circ $ in heliographic惯性（HGI）坐标系统的纬度。
In this Letter, we provide constraints on the direction and magnitude of the pristine (i.e., unperturbed by the interaction with the Sun) local interstellar magnetic field. The constraints are based on analysis of the interstellar magnetic field components at the heliopause measured by magnetometer instruments on board Voyager 1 and 2 spacecraft. The analysis was performed with the help of our kinetic-magnetohydrodynamical (MHD) model of the global heliosphere. The model shows that the solar-induced disturbances of the interstellar magnetic field are extended relatively far from the Sun up to 400-500 AU. The field is draped around the heliopause and compressed. By comparison of the model results with Voyager data we found that the model provides results comparable with the data for the interstellar magnetic field of $B_{LISM}$ = 3.7-3.8 $μ$G in magnitude and directed towards $\approx$125$^\circ$ in longitude, and $\approx$37$^\circ$ in latitude in the heliographic inertial (HGI) coordinate system.
