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Article
Open AccessOn the Physical Nature of the so-Called Prominence Tornadoes
The term ‘tornado’ has been used in recent years to describe several solar phenomena, from large-scale eruptive prominences to small-scale photospheric vortices. It has also been applied to the generally stabl...
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Article
Open AccessAnalysis of the Evolution of a Multi-Ribbon Flare and Failed Filament Eruption
How filaments form and erupt are topics about which solar researchers have wondered for more than a century and they are still open to debate. We present observations of a filament formation, its failed erupti...
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Article
Open AccessSolar Ultraviolet Bursts
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 ...
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Article
Open AccessCoronal loops, flare ribbons and aurora during slip-running
Solar two ribbon flares are commonly explained by magnetic field reconnections in the low corona. During the reconnection energetic particles (electrons and protons) are accelerated from the reconnection site....
