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Paper: Magnetic Dynamos in Common-Envelope Evolution
Volume: 293, 3D Stellar Evolution
Page: 100
Authors: Tout, C. A.; Regos, E.
Abstract: Common-envelope evolution is an important process of interaction in binary stars that is as poorly understood as it is important. Many of the more exotic stars, cataclysmic variables, X-ray binaries, close double-degenerate systems and indeed type Ia supernovae have passed through such a phase. It is inherently a three-dimensional phenomenon with the axis of rotation, the axis along the two core centres and a third perpendicular axis all behaving quite differently. Magnetic dynamos rely on three dimensional symmetry breaking and so, if they are to operate in stars at all, would favour such a phase. We describe a simple qualitative, even semi-quantitative model that illustrates how a powerful magnetic dynamo is not only inevitable in common-envelope evolution but may well be the driving force behind it.
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