Upper limits on the total radiant energy of solar flares |
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Authors: | H S Hudson R C Willson |
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Institution: | 1. Center for Astrophysics and Space Sciences, University of California, 92093, San Diego, La Jolla, CA, U.S.A. 2. Jet Propulsion Laboratory, 91103, Pasadena, CA, U.S.A.
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Abstract: | We establish limits on the total radiant energy of solar flares during the period 1980 February – November, using the solar-constant monitor (ACRIM) on board the Solar Maximum Mission. Typical limits amount to 6 × 1029 erg/s for a 32-second integration time, with 5σ statistical significance, for an impulsive emission; for a gradual component, about 4 × 1032 ergs total radiant energy. The limits lie about an order of magnitude higher than the total radiant energy estimated from the various known emission components, suggesting that no heretofore unknown dominant component of flare radiation exists. |
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