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Discovery of Non-radial pulsations in PQ Andromedae

Karen M. Vanlandingham·Greg J. Schwarz·Steve B. Howell
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Abstract

We have detected pulsations in time-series photometry of the WZ Sge dwarf nova PQ And. The strongest peak in the power spectrum occurs at a period of 10.5 minutes. Similar periods have been observed in other WZ Sge systems and are attributed to ZZ Ceti type non-radial pulsations. There is no indication in the photometry of an approximately 1.7 hour orbital period as reported in previous spectroscopic observations.

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Karen M. Vanlandingham, Greg J. Schwarz, Steve B. Howell. 2005-06-05. Discovery of Non-radial pulsations in PQ Andromedae. https://doi.org/10.1086/432456

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