Ontology highlight
ABSTRACT:
SUBMITTER: Uusitalo J
PROVIDER: S-EPMC6113262 | biostudies-literature | 2018 Aug
REPOSITORIES: biostudies-literature
Nature communications 20180828 1
Recently, a rapid increase in radiocarbon (<sup>14</sup>C) was observed in Japanese tree rings at AD 774/775. Various explanations for the anomaly have been offered, such as a supernova, a γ-ray burst, a cometary impact, or an exceptionally large Solar Particle Event (SPE). However, evidence of the origin and exact timing of the event remains incomplete. In particular, a key issue of latitudinal dependence of the <sup>14</sup>C intensity has not been addressed yet. Here, we show that the event w ...[more]