Cosmic-Ray Lithium Production at the Nova Eruption Followed by a Type Ia Supernova
| Autor: | Kawanaka, Norita, Yanagita, Shohei |
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| Rok vydání: | 2017 |
| Předmět: | |
| Zdroj: | Phys. Rev. Lett. 120, 041103 (2018) |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1103/PhysRevLett.120.041103 |
| Popis: | 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. Comment: 6 pages, 2 figures, accepted for publication in PRL |
| Databáze: | arXiv |
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