Paper published in a book (Scientific congresses and symposiums)
Long-Term Photometric and Spectroscopic Monitoring of Slowly Pulsating B Stars
Aerts, C.; De Cat, P.; De Ridder, J. et al.
2000In The Impact of Large-Scale Surveys on Pulsating Star Research, ASP Conference Series, Vol. 203; also IAU Colloquium #176. Edited by L. Szabados and D. Kurtz, p.437
 

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Abstract :
[en] We review the current status of our long-term monitoring project on slowly pulsating B stars that we started in the course of 1996 and that was recently completed as far as the first part of our plan is concerned. In total, we have selected 17 southern and 8 northern stars. The idea is to fully exploit our current data in the near future and to select the most interesting targets for further very-long-term follow-up monitoring. A first conclusion is that half of the southern targets turn out to be spectroscopic binaries. Some of these have circular orbits and periods of the same order of magnitude as the intrinsic pulsation period(s) of the primary. The eccentric binaries have periods ranging from 12 to 460 d. For most stars the photometric behaviour is dominated by the same frequency as the intrinsic spectroscopic variability. Multiperiodicity in the expected frequency range is found for almost all stars. Two objects, however, turn out to have only one dominant pulsation mode.
Disciplines :
Space science, astronomy & astrophysics
Author, co-author :
Aerts, C.
De Cat, P.
De Ridder, J.
Kolenberg, K.
Waelkens, C.
Mathias, P.
Briquet, Maryline ;  KULeuven > Instituut voor Sterrenkunde
Language :
English
Title :
Long-Term Photometric and Spectroscopic Monitoring of Slowly Pulsating B Stars
Publication date :
2000
Event name :
The Impact of Large-Scale Surveys on Pulsating Star Research
Event date :
1999
Audience :
International
Main work title :
The Impact of Large-Scale Surveys on Pulsating Star Research, ASP Conference Series, Vol. 203; also IAU Colloquium #176. Edited by L. Szabados and D. Kurtz, p.437
ISBN/EAN :
1-58381-030-7
Pages :
395-400
Commentary :
ISBN: <ISBN>1-58381-030-7</ISBN> 1-58381-030-7
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