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solar flare

solar flare Sudden and violent release of matter and energy from the Sun's surface, usually from the region of an active group of sunspots. Flares emit radiation right across the electromagnetic spectrum. Particles are emitted, mostly electrons and protons and smaller numbers of neutrons and atomic nuclei. A flare can cause material to be ejected in bulk in the form of prominences. When energetic particles from flares reach the Earth, they may cause radio interference, magnetic storms and more intense aurorae. See also electromagnetic radiation

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solar flare

solar flare A short-lived, cataclysmic outburst of solar material, driven by magnetic forces, from a relatively small area of the solar surface and generating particles with energies in the range 1–100 MeV which produce track records, e.g. in exposed lunar minerals.

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flare, solar

solar flare: see chromosphere.

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flare, solar

flare, solar See solar flare

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