Spot activity cycles and flip-flops on young solar analogs
作者： S. V. Berdyugina , S. P. Järvinen
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摘要: … single solar-type stars LQ Hya, AB Dor and EK Dra. These include cyclic variations of the … cycles: a 5.2-yr flip-flop cycle, a 7.7yr cycle in the brightness amplitude modulation and an …
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