Photometric variability of AP and He-weak stars in clusters and associations. I

Details Photometric variability of AP and He-weak stars in clusters and associations. I Photometric variability of AP and He-weak stars in clusters and associations. I

Feb 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984a%26as...55..259n&link_type=abstract

Astronomy and Astrophysics Supplement Series (ISSN 0365-0138), vol. 55, Feb. 1984, p. 259-358. Research sponsored by the Swiss N

Astronomy and Astrophysics

Astrophysics

65

A Stars, B Stars, Eclipsing Binary Stars, Light Curve, Star Clusters, Stellar Spectrophotometry, Variable Stars, Astrometry, Fourier Series, Magnetic Stars, Peculiar Stars, Periodic Variations, Spectrum Analysis, Star Distribution

Scientific paper

The lightcurves determined in the Geneva photometric system are presented for twenty-five CP2 and CP4 stars belonging to seven associations and clusters. A unique period is proposed for each star and the coefficients of the best fitting Fourier series are given for each light-curve. One star, Cox 38 in NGC 2516, is an eclipsing binary, becoming the first such known CP2 star. Another star, HD 37151, is multiperiodic, but the existing data do not allow to sort out the true frequencies from the aliased ones.

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