Search Publications

Solar Ultraviolet Bursts

Chitta, L. P.; Heinzel, Petr; Toriumi, Shin +16 more

The term "ultraviolet (UV) burst" is introduced to describe small, intense, transient brightenings in ultraviolet images of solar active regions. We inventorize their properties and provide a definition based on image sequences in transition-region lines. Coronal signatures are rare, and most bursts are associated with small-scale, canceling oppos…