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Glossary term: 太陽風

Description: 太陽風是一股粒子流,主要由質子和電子組成,以每秒高達 900 公裡的速度從太陽向外流動。太陽風本質上是溫度較高的日冕向行星際空間膨脹。

許多恆星都有這樣的恆星風;像太陽這樣溫度較低、磁場活躍的恆星,太陽是由其磁場產生的熱日冕驅動的。對於一些溫度較高的恆星,恆星風來源於它們的巨大光度,它們通過輻射壓將粒子從上層大氣中擠出。較冷的紅巨星和超巨星也可以通過輻射壓力驅動產生“風”。從恆星吹出的風的一般術語描述是恆星風。

太陽風或恆星風的粒子轟擊會對行星上可能存在的生命造成危害。地球磁場可以保護地球表面的生命免受太陽風的破壞。太陽風和地球磁場之間的相互作用是地球兩極附近出現極光的原因。

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Term and definition status: The original definition of this term in English have been approved by a research astronomer and a teacher
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This is an automated transliteration of the simplified Chinese translation of this term

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