A survey of recent results on the shapes and relative slopes of the spectra of various solar energetic particle populations is presented, with emphasis on the more extensive results currently available for protons, alphas and electrons. From previous work, it is found that proton spectra 0.8 to more than 400 MeV and alpha spectra 1.4 to 80 MeV/nucleon are best characterized, on average, by a functional form involving a Bessel function in momentum/nucleon. However, proton and alpha spectral slopes using this form are not equal, and there is significant variation from event to event. From other studies, electrons 0.02 to 20 MeV are also found to have curved spectra, but seem to be better fit with a double power law in energy. The spectral properties in both cases correlate with other measures of solar particle acceleration; e.g. gamma-ray line production, hard X-ray burst spectra and microwave fluxes.


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    Titel :

    The energy spectra of solar energetic particles


    Beteiligte:

    Erschienen in:

    Erscheinungsdatum :

    01.01.1984



    Medientyp :

    Sonstige


    Format :

    Keine Angabe


    Sprache :

    Englisch


    Schlagwörter :


    The energy spectra of solar energetic particles

    McGuire, R.E. / von Rosenvinge, T.T. | Elsevier | 1984


    Classification of solar energetic particles

    Ruffolo, D. | Online Contents | 2002


    Classification of Solar Energetic Particles

    Ruffolo, D. / The Committee on Space Research | British Library Conference Proceedings | 2002


    Solar energetic particles and space weather

    Reames, Donald V. / Tylka, Allan J. / Ng, Chee K. | American Institute of Physics | 2001


    Time-development of proton energy spectra in solar energetic particle events

    Meyer, J. / Wibberenz, G. / Kallenrode, M.-B. | Elsevier | 1993