Line-profile variability in the Wolf-Rayet stars WR 135 and WR 111

Details Line-profile variability in the Wolf-Rayet stars WR 135 and WR 111 Line-profile variability in the Wolf-Rayet stars WR 135 and WR 111

Nov 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001a%26a...379..224k&link_type=abstract

Astronomy and Astrophysics, v.379, p.224-228 (2001)

Astronomy and Astrophysics

Astrophysics

6

Stars: Mass-Loss, Stars: Wolf-Rayet

Scientific paper

We have obtained time-resolved observations of line-profile variations of the two Wolf-Rayet stars WR 135 and WR 111. The spectra, taken during two consecutive nights, cover a broad range from 4470 to 6590 Å. The profile variability of the C Iii emission line at 5696 Å in WR 135 is shown in detail. The principal difficulties to constrain the velocity law from the frequency drift of discrete spectral features is discussed, emphasizing the crucial dependence on the adopted location of the line-emission region, and the possible necessity to distinguish between the motion of structures and the flow of the matter. - Full access to the observational data is provided via anonymous file transfer.

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