作者
Michael S Kirk, KS Balasubramaniam, Jason Jackiewicz, RT James McAteer
发表日期
2014/11/10
期刊
The Astrophysical Journal
卷号
796
期号
2
页码范围
78
出版商
IOP Publishing
简介
Chromospheric flare ribbons observed in Hα appear well-organized when first examined: ribbons impulsively brighten, morphologically evolve, and exponentially decay back to pre-flare levels. Upon closer inspection of the Hα flares, there is often a significant number of compact areas brightening in concert with the flare eruption but are spatially separated from the evolving flare ribbon. One class of these brightenings is known as sequential chromospheric brightenings (SCBs). SCBs are often observed in the immediate vicinity of erupting flares and are associated with coronal mass ejections. In the past decade there have been several previous investigations of SCBs. These studies have exclusively relied upon Hα images to discover and analyze these ephemeral brightenings. This work employs the automated detection algorithm of Kirk et al. to extract the physical qualities of SCBs in observations of ground …
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