Spectroscopic variations of the Be star LQ And - Binarity and rotation

Details Spectroscopic variations of the Be star LQ And - Binarity and rotation Spectroscopic variations of the Be star LQ And - Binarity and rotation

Feb 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991mnras.248..787m&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 248, Feb. 15, 1991, p. 787-803. NSERC-supported researc

Astronomy and Astrophysics

Astronomy

9

B Stars, Eclipsing Binary Stars, Radial Velocity, Stellar Spectrophotometry, Variable Stars, Least Squares Method, Light Curve, Spectral Line Width, Stellar Orbits

Scientific paper

It is argued that LQ And belongs to a spectroscopic binary with a period of 7.413 d. This conclusion is based on radial velocity and line-intensity variations seen in 62 CFHT and DAO Reticon spectra obtained in 1988 as well as on data published previously. When the 7.413-d variations are removed from the data, the residuals show a periodicity of 0.619 d, which is attributed to the star's rotation.

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