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arXiv · 1707.00212

Cosmic-Ray Lithium Production at the Nova Eruption Followed by a Type Ia Supernova

Norita Kawanaka·Shohei Yanagita
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Abstract

Recent measurements of cosmic-ray light nuclei by AMS-02 have shown that there is an unexpected component of cosmic-ray (CR) lithium whose spectral index is harder than that expected from the secondary production scenario. We propose the nearby Type Ia supernova following a nova eruption as the origin of lithium nuclei in the CRs. By fitting the data of CR protons, helium, and lithium fluxes provided by AMS-02 with our theoretical model we show that this scenario is consistent with the observations. The observational tests that can check our hypothesis are briefly discussed.

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Norita Kawanaka, Shohei Yanagita. 2017-07-01. Cosmic-Ray Lithium Production at the Nova Eruption Followed by a Type Ia Supernova. https://doi.org/10.1103/physrevlett.120.041103

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