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Paper: Multiperiodic Pulsations in the Be Stars NW Ser and V1446 Aql
Volume: 349, Astrophysics of Variable Stars
Page: 249
Authors: Gutierrez-Soto, J.; Fabregat, J.; Suso, J.; Suarez, J.C.; Moya, A.; Garrido, R.; Hubert, A.M.; Floquet, M.; Neiner, C.; Fremat, Y.
Abstract: We present accurate differential photometry of two Be stars: NW Ser and V1446 Aql. Both stars show rapid variations in amplitude, probably due to a beating phenomenon. Two additional significant frequencies are also detected in both stars. This would be the first unambiguous ground-based detection of photometric multiperiodicity in Be stars which may constitute a proof of the presence of non-radial pulsations (nrp) as the origin of the short-term variability. Further observations are planned in order to confirm the detected frequencies.
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