O–C Investigations of RRab Stars from the SuperWASP Archive

Paul A. Greer and Andrew J. Norton

Early results are presented from O–C investigations into the phase modulation of RRab class RR Lyrae stars from the SuperWASP archive. These results show several objects with good parabolic fits which could be segments of longer sinusoidal period changes due to light travel time effects (LTTE). Visual inspection of O–C diagrams suggest some long period sinusoidal phase modulation, and some cases of phase modulation with periods too short to be LTTE, which could be previously unidentified cases of the Blazhko effect.

Proceedings of the Polish Astronomical Society, vol. 6, 292-294 (2018)

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