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Fast transients in hard X-ray solar flares |
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| Authors: | Alan L Kiplinger B R Dennis A Gordon Emslie K J Frost L E Orwig |
| Institution: | 1. Applied Research Corporation, Landover, Maryland, U.S.A. 2. Goddard Space Flight Center, Greenbelt, Maryland, U.S.A. 3. Dept. of Physics, University of Alabama in Huntsville, Huntsville, Alabama, U.S.A. |
| Abstract: | We present the results of a search for fast spikes in 5483 hard X-ray solar flares as observed with the Hard X-Ray Burst Spectrometer on the Solar Maximum Mission (SMM). Hundreds of fast spikes with durations of less than 1 second have been detected at time resolutions of 128 ms and 10 ms. Fast spikes have been detected with rise and decay times as short as 20 ms and with widths as short at 45 ms that represent the fastest hard X-ray variations yet seen from the Sun. The observations of such fast variations place new constraints on the physical nature of the source. |
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