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| Paper: |
Line Profile Variability in the Rotating Beta Cephei Stars Epsilon Cen, Omega-1 Sco, and beta SCO |
| Volume: |
135, A Half Century of Stellar Pulsation Interpretations: a Tribute to Arthur N. Cox |
| Page: |
149 |
| Authors: |
Telting, J.; Schrijvers, C. |
| Abstract: |
We present high-resolution spectroscopy of the rotating b Cephei stars Epsilon Cen, Omega-1 Sco, and Delta Sco. From time series of spectra it is evident that these stars exhibit high-amplitude non-radial pulsations. The spectra of Epsilon Cen (a multiperiodic photometric variable, Heynderickx 1992) and Omega-1 Sco (not previously known to be variable) show striking similarities to spectra of Delta Sco (a known non-radial pulsator, Smith 1986). The number of bumps and troughs in the line profiles of Epsilon Cen and Omega-1 Sco suggests that the non-radial pulsations in these stars have a higher pulsational degree l than the pulsations in Delta Sco. References: Heynderickx D, 1992, A&AS 96, 207 Smith M., 1986, ApJ 304, 728 |
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