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Paper: The nature of short-term, long-term, and transient wind activity in Be stars
Volume: 292, Interplay of Periodic, Cyclic and Stochastic Variability in Selected Areas of the H-R Diagram
Page: 227
Authors: Peters, G. J.
Abstract: Cyclic and apparent transient variability in the winds of Be stars are discussed. Short-term cyclical variability can be explained by either nonradial pulsations or stellar rotation, whereas long-term wind changes are probably connected with quasi-periodic activity cycles that may be caused by magnetic fields. Often what is thought to be a transient event is actually a phase-dependent variation in the circumstellar material in an interacting binary. Binarity effects in a well-known Be/Algol-type system (CX Dra) and transient wind variations in a suspected interacting binary (FY CMa) are discussed.
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