V2EX magnetopause

Magnetopause

释义 Definition

磁层顶(磁层边界):行星(最常指地球)的磁层与外部太阳风等离子体相互作用形成的边界区域。在这里,行星磁场的压力与太阳风的动压大致达到平衡;磁层顶会随太阳风强弱而移动,并常发生磁重联等过程。

发音 Pronunciation (IPA)

/mntpaz/

词源 Etymology

由 **magneto-**(“磁的、磁场的”,源自希腊语 magnēs “磁石”相关词根)+ -pause(源自希腊语 pausis “停止、停顿”)构成,字面含义可理解为“磁场作用到此为止的界面/停顿处”,用于指磁层与太阳风之间的“分界面”。

例句 Examples

The satellite crossed the magnetopause and entered the magnetosphere.
卫星穿过了磁层顶,进入了磁层。

During a strong solar storm, the magnetopause can be pushed closer to Earth, increasing the chances of geomagnetic disturbances.
在强太阳风暴期间,磁层顶可能被推向更靠近地球的位置,从而增加地磁扰动发生的可能性。

相关词 Related Words

文学与著名作品 Literary Works

  • Introduction to Space Physics(Kivelson & Russell 编):在讨论太阳风磁层相互作用时频繁使用 magnetopause(如边界结构、压力平衡、重联过程等)。
  • Basic Space Plasma Physics(Baumjohann & Treumann):在磁层顶处的等离子体边界、波动与不稳定性章节中出现该术语。
  • NASA/ESA 的空间物理科普与任务报告(如 MMS、Cluster 相关资料):常用 magnetopause 描述探测器穿越磁层顶及边界层观测结果。
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