MOST Detects g-Modes in the Late-Type Be Star β Canis Minoris (B8 Ve)

@article{Saio2007MOSTDG,
  title={MOST Detects g-Modes in the Late-Type Be Star $\beta$ Canis Minoris (B8 Ve)},
  author={H. Saio and C. Cameron and R. Kuschnig and G. Walker and J. Matthews and J. Rowe and U.Lee and D. Huber and W. Weiss and D. Guenther and A. Moffat and S. Rucinski and D. Sasselov},
  journal={The Astrophysical Journal},
  year={2007},
  volume={654},
  pages={544-550}
}
The Microvariability and Oscillations of Stars (MOST) satellite has detected low-amplitude light variations (?m ~ 1 mmag) in the Be star ? CMi (B8 Ve). The observations lasted 41 days and the variations have typical periods ~0.3 days. We demonstrate that the dominant frequencies are consistent with prograde high-order g-modes of m = -1 excited by the Fe bump of opacity in an intermediate-mass (?3.5 M?) star with a nearly critical rotation period of 0.38 days. This is the first detection of… Expand
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