Vreux, Jean-Marie[Université de Liège - ULg > > Département d'astrophys., géophysique et océanographie (AGO)]
Gosset, Eric[Université de Liège - ULg > Département d'astrophys., géophysique et océanographie (AGO) > Groupe d'astrophysique des hautes énergies (GAPHE)]
Bohannan, B.[Kitt Peak National Observatory, Tucson, AZ]
Conti, P.[Joint Inst. for Lab. Astrophysics, Boulder, CO]
[en] LINE SHAPE ; LINE SPECTRA ; STELLAR SPECTRA ; WOLF-RAYET STARS ; RADIAL VELOCITY ; SPECTRAL SIGNATURES ; VARIABILITY
[en] Line profile variations of WR 134 are analyzed on more than 200 spectra collected at Haute Provence Observatory and at Kitt Peak National Observatory. No conclusive evidence is found for a periodic behavior. However, for some frequencies, for example, the ones close to nu = (n x 0.5)/d, the data are ill-distributed, and the existence of a related periodic phenomenon cannot be completely ruled out. This does not mean that the variability presents a purely random behavior. Several new characteristics of the observed deformations are extracted from the analysis of the spectra and it is tentatively suggested that these could be the signature of a bipolar flow.
[Université de Liège - ULg > > Département d'astrophys., géophysique et océanographie (AGO)]
