Discovery of Non-radial pulsations in PQ Andromedae
arXiv:astro-ph/0506098 · doi:10.1086/432456
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.
7 pages, 5 figures