Three-dimensional magnetohydrodynamic description of the process of impingement of a solar wind rotational discontinuity on the Earth鈥檚 bow shock

详细信息

下载全文

推荐本文 |

• 作者：E. A. Pushkar
• 关键词：interaction between discontinuities &#8211 ; solar wind &#8211 ; rotational discontinuity &#8211 ; Earth’ ; s magnetosphere &#8211 ; bow shock &#8211 ; magnetosheath
• 刊名：Fluid Dynamics
• 出版时间：April 2011
• 出版年：2011
• 期刊代码：25_00154628
• 类别：ear
• 卷：46
• 期：2
• 页码：308-326
• 数据来源：sp

摘要

The impact of the plane front of a rotational discontinuity, which has a circular polarization and propagates in the solar wind along the Sun-Earth radius, on the Earth’s bow shock and the magnetosheath is first investigated in the three-dimensional formulation. The most characteristic values of the solar wind parameters and the interplanetary magnetic field strength in the Earth’s orbit are considered. The global three-dimensional pattern of the flow is constructed as a function of the latitude and longitude of points on the bow shock and the intensities of all the waves appearing in the interaction which significantly depend on the angle of rotation of the magnetic field are found. The solution obtained is necessary to interpret the solar wind parameters and the interplanetary magnetic field measured by spacecraft located in the neighborhood of the Lagrange point and the Earth’s magnetosphere.