Abstract
From a long-term spectroscopic observing campaign of Be stars we have found that their emission line profiles separate into two classes, the second of which is very asymmetric. The sign of asymmetry changes on a timescale of a few years. We show that these line profiles and the well-known enigmatic V/R variations observed in some Be stars are two aspects of the same phenomenon, one-armed global oscillations in a Keplerian disk. We present model profiles and a line fit to support this hypothesis and find good overall agreement.
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© 1994 Springer Science+Business Media Dordrecht
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Hanuschik, R.W. (1994). Observational Evidence for Global Oscillations in Be Star Disks. In: Dyson, J.E., Carling, E.B. (eds) Kinematics and Dynamics of Diffuse Astrophysical Media. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-0926-0_15
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DOI: https://doi.org/10.1007/978-94-011-0926-0_15
Publisher Name: Springer, Dordrecht
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