3 days in the life of an Active Region (click on image to see movie)
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XRT has been observing this active region, one of the few in this
quiet period of the Sun's activity cycle, using the thin-Be filter
which is most sensitive to hot plasma (with temperature of a few
million degrees). The active region is observed from shortly after
its appearance on the west limb for several days. The loop structures
undergo significant brightenings, and changes in their shapes and
connections one to the other.
Keywords: AR Tracking Filters: Be_thin |
(Prepared by Paola Testa)
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