[en] We present the preliminary results of a detailed study of ground-based photometric and spectroscopic observations dedicated to the β Cephei CoRoT main target HD 180642. Besides the non-linear dominant radial mode several low-amplitude modes are detected in both kinds of datasets. Our aim is to derive the wavenumbers (ℓ,m) of these modes, as additional constraints to the CoRoT pulsation frequencies, for forthcoming asteroseismic modelling of the star.
Disciplines :
Space science, astronomy & astrophysics
Author, co-author :
Briquet, Maryline ; Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Astrophysique stellaire théorique et astérosismologie
Uytterhoeven, K.
Aerts, C.
Morel, Thierry ; Université de Liège - ULiège > GAPHE : Astrophysique observationnelle (sol et espace)
