A possible case of sporadic aurora observed at Rio de Janeiro

@article{Oliveira2020APC,
  title={A possible case of sporadic aurora observed at Rio de Janeiro},
  author={D. M. Oliveira and H. Hayakawa and A. Bhaskar and E. Zesta and G. Vichare},
  journal={Earth, Planets and Space},
  year={2020},
  volume={72},
  pages={1-9}
}
Being footprints of major magnetic storms and hence major solar eruptions, mid- to low-latitude aurorae have been one of the pathways to understand solar–terrestrial environments. However, it has been reported that aurorae are also occasionally observed at low latitudes under low or even quiet magnetic conditions. Such phenomena are known as “sporadic aurorae”. We report on a historical event observed by a scientist of the Brazilian Empire in Rio de Janeiro on 15 February 1875. We analyze this… Expand
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