Properties and nature of Be stars. XV - Light variations of LQ And and its check stars revisited

Details Properties and nature of Be stars. XV - Light variations of LQ And and its check stars revisited Properties and nature of Be stars. XV - Light variations of LQ And and its check stars revisited

Feb 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991baicz..42....1h&link_type=abstract

Astronomical Institutes of Czechoslovakia, Bulletin (ISSN 0004-6248), vol. 42, Feb. 1991, p. 1-16. NSERC-supported research.

Other

11

B Stars, Light Curve, Peculiar Stars, Ubv Spectra, Stellar Composition, Stellar Luminosity, Stellar Rotation, Variable Stars

Scientific paper

Results of an analysis of 624 UBV observations of LQ And made at six observatories between 1980 and 1988 have been used to find a period of 0.30952 or 0.61904 days, with a full amplitude of about 0.025 m. No evidence of multiperiodicity is found, and the only variation other than the periodic one at 0.6 or 0.3 days is the suspected decline in brightness between 1951 and 1988, probably connected with physical changes in the Be envelope. A new period of 3.5112 days is derived for LQ And light and color variations, and it is suggested that this hot CP star is an oblique rotator.

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