A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä
Multiperiodicity, modulations and flip-flops in variable star light curves II. Analysis of II Pegasus photometry during 1979-2010
Tekijät: Lindborg M, Mantere MJ, Olspert N, Pelt J, Hackman T, Henry GW, Jetsu L, Strassmeier KG
Julkaisuvuosi: 2013
Lehti: Astronomy and Astrophysics
Tietokannassa oleva lehden nimi: ASTRONOMY & ASTROPHYSICS
Lehden akronyymi: ASTRON ASTROPHYS
Artikkelin numero: ARTN A97
Vuosikerta: 559
Sivujen määrä: 10
ISSN: 0004-6361
DOI: https://doi.org/10.1051/0004-6361/201321695
Tiivistelmä
Conclusions. There is some evidence that the regular drift without phase jumps is related to the high state, while the complex phase behavior and disrupted drift pattern are related to the low state of magnetic activity. The most natural explanation of the drift is weak anti-solar (pole rotating faster than the equator) differential rotation with a coefficient k approximate to 0.002 combined with the preferred latitude of the spot structure.
Conclusions. There is some evidence that the regular drift without phase jumps is related to the high state, while the complex phase behavior and disrupted drift pattern are related to the low state of magnetic activity. The most natural explanation of the drift is weak anti-solar (pole rotating faster than the equator) differential rotation with a coefficient k approximate to 0.002 combined with the preferred latitude of the spot structure.
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