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Astron. Astrophys. 361, 245-257 (2000)

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Follow-up photometry of six new [FORMULA] Cephei stars discovered from the HIPPARCOS mission *

C. Aerts **

Katholieke Universiteit Leuven, Instituut voor Sterrenkunde, Celestijnenlaan 200 B, 3001 Heverlee, Belgium

Received 28 February 2000 / Accepted 3 July 2000


We present ground-based follow-up photometry in the Geneva seven-colour photometric system of six new candidate [FORMULA] Cep stars. The variability of these objects was originally found from the HIPPARCOS mission. From the new data we are able to confirm their [FORMULA] Cep-type nature, to detect the pulsational frequencies and to identify most of the degrees of the pulsation modes. All six stars turn out to have frequencies in the expected range for [FORMULA] Cep stars and the degrees of the main mode range from [FORMULA] up to [FORMULA], which is compatible with theoretical expectations.

Key words: stars: variables: general – stars: oscillations – stars: individual: HD 71913, HD 109885, HD 157485, HD 165812, HD 180642, HD 203664

* Based on observations collected with the Swiss Photometric Telescope of the Geneva Observatory situated at La Silla, Chile. Tables 5-10 are only in electronic form at the CDS via anonymous ftp to ftp://cdsarc.u-strasbg.fr/pub/cats/J/A+A/361/245 ( or at http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/361/245
** Postdoctoral Fellow, Fund for Scientific Research, Flanders

© European Southern Observatory (ESO) 2000

Online publication: September 5, 2000