The looping, gaseous eruptions are linked to changes in the strength of the sun's magnetic field, though the details of how solar prominences form remain an active area of research, Guhathakurta said.
古哈萨·库塔说，这种环状气态喷发与太阳磁场强度变化有关。不过，有关日珥形成的具体细节仍是目前较活跃的研究领域。
What's more, a decrease in sunspots doesn't necessarilymean a drop in other solar features such as prominences, which can produce aurora-triggering coronal mass ejections.
而且，太阳黑子减少并不一定意味着太阳的其它特征的减少，比如日珥——它能产生引起极光的日冕物质抛射。
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