magnetopause

Japanese: magnetopause
magnetopause


[shape]
The shape of the magnetosphere is determined by the balance between the dynamic pressure of the solar wind nm P V 2 ( n is the number density of protons, m P is the mass of a proton, and V is the speed of the solar wind) and the pressure of the magnetospheric magnetic field. The shape of the part facing the solar wind is almost a spheroid, and the magnetopause is located about 11 RE ( RE is the Earth's radius of 6,370 km) from the center of the Earth around noon, and about 13 RE on the morning and evening sides. The night side is stretched by the solar wind like the tail of a comet.

*Some of the terminology explanations that mention "magnetopause" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:


[形状]
 磁気圏の形は太陽風の動圧nmPV2(nは陽子の数密度,mPは陽子の質量,Vは太陽風の速さ)と磁気圏磁場の圧力との平衡でほぼ決まっている。太陽風に面した部分の形は,ほぼ回転楕円体に近く,正午付近では地球中心から約11RE(REは地球半径6370km),朝側と夕方側では約13REの距離に磁気圏境界面magnetopauseがある。夜側はすい星の尾のように太陽風によって引き伸ばされている。…

※「magnetopause」について言及している用語解説の一部を掲載しています。

出典|株式会社平凡社世界大百科事典 第2版について | 情報

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