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| Paper: |
Nonradial Pulsations in Classical Cepheids of the Magellanic Clouds |
| Volume: |
310, Variable Stars in the Local Group (IAU Colloquium 193) |
| Page: |
498 |
| Authors: |
Moskalik, P.; Kolaczkowski, Z.; Mizerski, T. |
| Abstract: |
We have performed systematic frequency analysis of the LMC Cepheids observed by OGLE project. Several new types of pulsation behavior are identified, including triple-mode and amplitude-modulated double-mode pulsations. In ~ 10% of the first overtone Cepheids we find low amplitude secondary periodicities corresponding to nonradial modes. This is the first evidence for excitation of nonradial oscillations in Classical Cepheid variables. |
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