Spot activity cycles and flip-flops on young solar analogs

Details Spot activity cycles and flip-flops on young solar analogs Spot activity cycles and flip-flops on young solar analogs

Apr 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005an....326..283b&link_type=abstract

Astronomische Nachrichten, Vol.326, Issue 3, p.283-286

Astronomy and Astrophysics

Astronomy

17

Stars: Activity, Stars: Spots, Stars: Individual (Lq Hya, Ab Dor, Ek Dra)

Scientific paper

We discuss activity phenomena observed in the spot distribution on young single solar-type stars LQ Hya, AB Dor and EK Dra. These include cyclic variations of the mean activity level, differential rotation, persistent active longitudes separated by 180 ° and flip-flop cycles. A comparison with the sunspot activity reveals many similarities between the Sun and the young solar analogs. Our results confirm the presence of cyclic activity in very young dwarfs and allow for studying evolution of the stellar magnetic activity during the main-sequence stage.

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