A photometric campaign on the Be stars Omicron And, KX And, KY And, LQ And and EW Lac

Details A photometric campaign on the Be stars Omicron And, KX And, KY And, LQ And and EW Lac A photometric campaign on the Be stars Omicron And, KX And, KY And, LQ And and EW Lac

Oct 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988mnras.234.1021s&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 234, Oct. 15, 1988, p. 1021-1049. NSERC-supported resea

Astronomy and Astrophysics

Astronomy

24

Andromeda Constellation, Astronomical Photometry, B Stars, Periodic Variations, Shell Stars, Ubv Spectra, Variability

Scientific paper

Results are presented from a UBV photometric study of five northern Be stars. It is found that the variation of Omicron And, LQ And, and possibly KX And and EW Lac, is periodic. No periodicity was observed for KY And. The light curves of the stars are discussed. Only two of the models considered account for the short-term variability observed in the stars. The nonradial pulsator requires special assumptions to explain nonsinusoidal light curves. Also, it is difficult to explain the abrupt change in the light curve of EW Lac with the magnetic oblique rotator model.

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