High-energy measurements of the 1991 november 15 solar flare


We report λ-ray observations of the 1991 November 15 solar flare. Although the event was not as well measured as some with the Compton Gamma Ray Observatory (CGRO) because the axis of the Comptonspacecraft was far from the solar direction, the data are comprehensive and span a wide range of energies with good sensitivity and resolution. Of particular interest are the observations that the energetic proton spectrum was harder during the impulsive phase, the transport of protons in the corona was diffusive rather than adiabatic, the abundance of 3He may be higher than is normally believed and there is not enough energy in the energetic electrons to power the white light emission, although proton heating is still possible.

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COSPAR Colloquia Series



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Conference Proceeding


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