Two Ribbon Flare



On September 29. 2013, a large magnetic filament erupted on the Sun’s northern hemisphere and produced a C1.2 solar flare. Observation in the EUV showed two elongated ribbon-like structures (hence, the term two-ribbon flare) symmetrically developing on either side of the active region, along the polarity inversion line (neutral line). Two-ribbon flares are extremely powerful eruptions; during magnetic reconnection the magnetic energy is converted into radiation across the electromagnetic spectrumenergetic particles are accelerated up to several hundred MeV or even to GeV range. These high-energy particles are called solar cosmic rays.

Credit & source: LMSAL/Scott Green




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