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

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arxiv 1707.00212 v2 pith:XBK6CAVF submitted 2017-07-01 astro-ph.HE

Norita Kawanaka , Shohei Yanagita This is my paper · ORCID
classification astro-ph.HE
keywords lithiumcosmic-rayams-02eruptionnovanucleiproductionscenario
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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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Cited by 1 Pith paper

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  1. Prediction of lithium isotope fluxes using data-driven production cross sections

    astro-ph.HE 2025-02 conditional novelty 5.0 of 10

    Adding heavy-progenitor lithium production with cross sections renormalized to measurements removes the AMS-02 lithium excess and predicts 6Li and 7Li fluxes consistent with preliminary data.

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