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Prolonged production of (14)C during the ~660 BCE solar proton event from Japanese tree rings
Annual rings record the intensity of cosmic rays (CRs) that had entered into the Earth’s atmosphere. Several rapid (14)C increases in the past, such as the 775 CE and 994CE (14)C spikes, have been reported to originate from extreme solar proton events (SPEs). Another rapid (14)C increase, also known...
Autores principales: | , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Nature Publishing Group UK
2020
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6971252/ https://www.ncbi.nlm.nih.gov/pubmed/31959822 http://dx.doi.org/10.1038/s41598-019-57273-2 |