Volume 379, Number 3, December I 2001
|Page(s)||905 - 916|
|Section||Interstellar and circumstellar matter|
|Published online||15 December 2001|
Spectroscopic monitoring of 10 new northern slowly pulsating B star candidates discovered from the HIPPARCOS mission*
Observatoire de la Côte d'Azur, Departement Fresnel, UMR 6528, BP 4229, 06304 Nice Cedex 4, France
2 Instituut voor Sterrenkunde, Katholieke Universiteit Leuven, Celestijnenlaan 200 B, 3001 Leuven, Belgium
3 Institut d'Astrophysique et de Géophysique, Avenue de Cointe 5, 4000 Liège, Belgium
4 Koninklijke Sterrenwacht van België, Ringlaan 3, 1180 Brussel, Belgium
Corresponding author: P. Mathias, email@example.com
Accepted: 27 September 2001
A one-year follow-up campaign of high-resolution, high-signal-to-noise spectroscopy for 10 candidate slowly pulsating B stars, which were discovered from the HIPPARCOS astrometric mission, shows that all stars exhibit line-profile variability. From our data, and from the HIPPARCOS photometry, we conclude that all but one of the targets provide evidence of multiperiodicity, with periods of the order of days, confirming their pulsational nature. Thus they are confirmed slowly pulsating B stars. We summarize the pulsation periods and Q-values and select the most interesting targets for very-long-term follow-up observations with the goal of performing asteroseismology.
Key words: stars: variables: general / stars: oscillations / line: profiles / stars: binaries: spectroscopic
© ESO, 2001
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