科研之友
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摘要
Descriptions of eleven aurorae observed in the Canary Islands during the period 1770 -aEuro parts per thousand 2010 have been found in different documents. Most of them are coincident with periods of strong solar activity, with the geomagnetic latitude playing a minor role. Coronal mass ejections are the most probable solar source of these low-latitude events. The absence of low-latitude aurorae is verified in our sample during the Dalton Minimum and the first half of the twentieth century.
- 出版日期2010-12
