[en] In this contribution we review the current status of the determination of the rotational frequency in non-radially pulsating B stars, i.e. beta Cep stars and slowly pulsating B stars. Considerable progress is currently being made in the understanding of the non-radial oscillations of main-sequence B Stars by means of high-temporal, high-spatial resolution spectroscopic time series. This has led to the detection of frequency multiplets, which are interpreted as rotationally splitted non-radial modes and which allow an accurate determination of the surface rotational frequency in some stars. We outline how our future goal, i.e. the derivation of the internal rotation frequency, can be achieved.
Disciplines :
Earth sciences & physical geography
Author, co-author :
Aerts, C.
Scuflaire, Richard ; Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Evol. et stabilité des étoiles et des amas d'étoiles (ESEA)
Thoul, Anne ; Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Evol. et stabilité des étoiles et des amas d'étoiles (ESEA)
Language :
English
Title :
Derivation of the rotational frequency of massive stars from seismic studies
Publication date :
2004
Event name :
IAU Symposium 215
Event date :
from 11-11-2002 to 15-11-2002
Audience :
International
Main work title :
Stellar Rotation. 215
Publisher :
Astronomical Soc Pacific, San Francisco, United States - California
Pages :
199-204
Funders :
F.R.S.-FNRS - Fonds de la Recherche Scientifique [BE]