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Paper: PB8783 Revisited
Volume: 334, 14th European Workshop on White Dwarfs
Page: 623
Authors: Vuckovic, M.; Hostler, S.; Kawaler, S.D.; Behera, B.
Abstract: A typical pulsating subdwarf B star of the EC 14026 class, PB8783 has been a target of two observing runs. The discovery run (Koen et al. 1997) identified six low amplitude periodicities between 120 and 135 seconds. It was a target of multi-site campaign (O'Donoghue et al. 1998) that revealed eleven periodicities in the range of 94-136 seconds. We present 25 hours of "fresh" time series photometry of PB8783 obtained during a two week observing run at the Erwin W. Fick Observatory in November 2003. Several periodicities have been identified in the light curve over the same range as seen in earlier data. While some frequencies are the same in both epochs and appear at similar amplitudes, some puzzling differences have emerged.
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