WR 134 line-profile variability revisited

Details WR 134 line-profile variability revisited WR 134 line-profile variability revisited

Mar 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992a%26a...256..148v&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 256, no. 1, p. 148-158.

Astronomy and Astrophysics

Astrophysics

22

Line Shape, Line Spectra, Stellar Spectra, Wolf-Rayet Stars, Radial Velocity, Spectral Signatures, Variability

Scientific paper

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.

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