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Name:Tony Bird
Institution:University of Southampton
Country:UK
Title:Optical periods in SMC Be/X-ray binaries
Abstract:We have carried out a systematic search for periodicities in OGLE II and III data for ~50 Be/X-ray binary systems in the SMC. We are finding evidence for a number of different mechanisms that can give rise to periodic variations, and have developed new metrics to recognise and disentangle stellar pulsations from binary effects. We compare our results with those derived from X-ray measurements.