Forbush event

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A Forbush event (also: Forbush effect ) is an observed sudden drop in the high-energy cosmic rays after a solar eruption . This happens because the solar wind keeps these high-energy particles away from the earth. The event can easily be detected with a particle detector.

The namesake for the term Forbush event was the geophysicist Scott E. Forbush , who researched cosmic rays in the 1930s and 1940s and discovered this effect.