Dynamo models and the flip-flop phenomenon in late-type stars
نویسنده
چکیده
The ‘flip-flop’ phenomenon has now been found to occur on several late-type stars: active longitudes, associated with dark regions of the surface, are seen to jump by 180◦. A simple non-linear non-axisymmetric mean field dynamo model is described, in which for the first time magnetic behaviour is found that is akin to the observed flip-flop.
منابع مشابه
Nonaxisymmetric magnetic field generation in rapidly rotating late-type stars
Abstract. Recently the discovery of the “flip-flop” phenomenon, by which a predominant “active” longitude jumps by about 180◦, on several rapidly rotating late-type stars has directed attention to the issues surrounding the presence of large-scale nonaxisymmetric magnetic fields in these objects. Here we study nonlinear mean field dynamo models with quasi-cylindrical rotation laws, acting in sp...
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