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Cyclic variability of the circumstellar disk of the Be star zeta Tauri II. Testing the 2D global disk oscillation model
(EDP SCIENCES S A, 2009)
Context. About 2/3 of the Be stars present the so-called V/R variations, a phenomenon characterized by the quasi-cyclic variation in the ratio between the violet and red emission peaks of the HI emission lines. These ...
Cyclic variability of the circumstellar disk of the Be star zeta Tauri I. Long-term monitoring observations
(EDP SCIENCES S A, 2009)
Context. Emission lines formed in decretion disks of Be stars often undergo long-term cyclic variations, especially in the violet-to-red (V/R) ratio of their primary components. The underlying structural and dynamical ...