Hybrid Origins of the Cosmic-Ray Nucleus Spectral Hardening at a Few Hundred GV

Abstract Many experiments have confirmed the spectral hardening at a few hundred GV of cosmic-ray (CR) nucleus spectra, and three general different origins been proposed: primary source acceleration, propagation, superposition kinds sources. The AMS-02 CR spectra He, C, N, O, Ne, Mg, Si, B (which includes its dominating parent species) are collected to study necessity employing break in diffusion coefficient independent breaks injection reproduce GV. For comparison, schemes introduced do global fitting. fitting results show that both needed, which correspond spatially dependent propagation sources, respectively. Consequently, should hybrid origins. Moreover, indices He Ne large deviations from other species low-rigidity region, indicates their