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- According to some of the newest observations, the larger and higher magnetic
- loops are believed to hold down the newer and smaller fields emerging from the
- surface. They also tie down the hot plasma carried by those fields. This causes
- tremendous energy to build. Eventually, some of the overlying magnetic loops
- merge and cancel each other, cutting a hole in the magnetic net and allowing the
- coronal mass ejection (CME) to escape at high speed.
- The corona extends outward as solar wind.
-
- Coronal holes are gaps in the corona, regions of reduced emission, reduced
- density, and increased speed. Coronal plumes are glowing matter suspended in the
- corona above Sun's polar regions. They are to be seen around north and south
- poles of the Sun. In the picture EIT close-up of plumes in a polar coronal hole.
- Coronal streamers are long features in the corona above the Sun's equatorial
- region.
-