Multiperiodic Pulsations in the Be Stars NW Ser and V1446 Aql

Details Multiperiodic Pulsations in the Be Stars NW Ser and V1446 Aql Multiperiodic Pulsations in the Be Stars NW Ser and V1446 Aql

Apr 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aspc..349..249g&link_type=abstract

Astrophysics of Variable Stars, Pecs, Hungary, 5-10 September 2005, Sterken, C. and Aerts, C. (eds). ASP Conference Series, Vol.

Astronomy and Astrophysics

Astrophysics

2

Scientific paper

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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