Solar prominences are large magnetic structures confining a cool and dense plasma in the hot solar corona. Typically, the prominence plasma is 100 times cooler and denser than its coronal surroundings. This phenomenon raises some important questions about the origin of the prominence plasma, and the energy and force equilibria which allow it to remain in the corona for a relatively long time.
The prominence contains many fine structures, including prominence bubble and dark upflow plumes. However, the nature of prominence bubbles remains controversial and the detailed formation mechanism of dark upflow plumes is not clear.
A research team led by Dr. Wang Jincheng, Prof...
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