Fig. 27From: Earth-affecting solar transients: a review of progresses in solar cycle 24Event integrated and reservoir spectra during the 11/22/1977 SEP event. The spectrum shows a double power-law feature, while the reservoir spectrum exhibits a single power law (from Zhao et al. 2017). This effect was interpreted in terms of particle streaming and rigidity-dependent scattering effects that modify the spectrum at lower energiesBack to article page