The radial velocity variations of HD 125823 a Centauri.
Abstract
Summary. Radial velocities are presented from 66 spectrograms of HD 125823 a Centauri obtained on ten consecutive nights. The lines of He I when plotted against the phase of the He iline strength variation tend to be positively displaced with respect to the mean velocity at phases near 0.3 and negatively displaced around phase 0.7-0.8. The lines of N ii show. a clear reversal of this behavior. The lines of H, C ii, Mg ii and Ca ii show no particular trend while the lines of Si H and Si iii show a slight tendency to vary like the N ii lines. Key words: radial velocity variations - helium variable star
- Publication:
-
Astronomy and Astrophysics
- Pub Date:
- May 1973
- Bibcode:
- 1973A&A....25..141U