平静行星际磁场的扇形结构

Sector Structure of the Quiet Interplanetary Magnetic Field.

作者信息

Ness N F, Wilcox J M

出版信息

Science. 1965 Jun 18;148(3677):1592-4. doi: 10.1126/science.148.3677.1592.

DOI:10.1126/science.148.3677.1592

Abstract

Observations of the interplanetary magnetic field by the Imp-1 satellite have revealed a regular longitudinal sector structure in this field. The sectors co-rotate with the sun; as an average sector sweeps past the earth the magnitude of the interplanetary field decreases from greater than 6 gammas (1 gamma = 10(-5) gauss) to less than 4 gammas, and the daily sum of the geomagnetic activity index, Kp, decreases from 25 to less than 10.

摘要

“探险者1号”卫星对行星际磁场的观测揭示了该磁场中存在规则的纵向扇形结构。这些扇形区域随太阳一起共转；当一个平均扇形区域扫过地球时，行星际磁场的强度从大于6伽马（1伽马 = 10^(-5)高斯）减小到小于4伽马，并且地磁活动指数Kp的日总和从25减小到小于10。