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盔状流

在太阳极大期丰富的盔状流。
在太阳极小期的盔状流。

盔状流太阳活动区域发展出来的明亮循环状结构,它们连接磁极性相反的两个相邻区域,并且形成封闭的磁场循环。由于电子被这些循环捕获,因而使其非常明亮。太阳风使得这些循环变得尖细,并伸展到日冕之上,可以在日全食的时候观察到。盔状流通常只在中纬度以"流光带"出现,并随着太阳周期活动区域的移动配置。小的等离子泡或"等离子团"有时会从盔状流的顶端释出,而这是慢速太阳风粒子成员的来源之一。与此相反的,磁场线形成开放的区域称为冕洞,这些区域较为黑暗,并且是快速太阳风的一个来源。如果大体积的等离子从接近盔状流的顶端处分离出去,也能产生日冕物质抛射

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盔状流
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