In images taken by X-ray telescopes, such as the one Hinode uses, coronal holes appear dark because the hot glowing gas which would otherwise fill them has spilled out in the solar wind.
英
美
- 上面的图像是由X射线望远镜拍摄到的,如日出(?),冕洞之所以表现为黑暗,是因为炙热的发光气体将填补这些已蔓延的太阳风。