Ponente
Ruizhi Yang
(USTC)
Descripción
Recent cosmic-ray (CR) measurements have revealed unexpected anomalies in secondary CRs, namely deviations from the predictions of the so-called standard Galactic CR paradigm regarding the composition and energy spectra of the products of interactions of primary (accelerated) CRs with interstellar gas: (i) antiparticles (positrons and antiprotons), (ii) light elements of the (Li, Be, B) group, and (iii) diffuse gamma-rays. We argue that the new measurements can still be explained within the standard CR paradigm but with an additional assumption that CRs spend a significant part of their lifetime near their formation sites. The latter can be realized if CRs propagate more slowly in these localized regions than in the interstellar medium.
Autores primarios
Ruizhi Yang
(USTC)
Prof.
Felix Aharonian
