An Update on Pulsations in Accreting White Dwarfs
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Since the last white dwarf workshop, there is continuing evidence that long (hrs to days) periodicities are being found in white dwarfs that are undergoing accretion in close binary systems. Pulsation modes remain a possible explanation but proof remains elusive. We will compare the known properties of accreting, pulsating white dwarfs with those in ZZ Ceti stars. While sky surveys continue to proliferate, the discovery of accreting pulsators is not rising proportionally. Reasons for this discrepancy as well as future needs are discussed.
The 21st European Workshop on White Dwarfs was held in Austin, TX from July 23rd to 27th of 2018