The new helium-weak star HR 446
Abstract
The CP star HR 446 (HD 9531, B8p V,m=5.69) is one of the CP stars with no definitely assigned peculiarity type. In this contribution it is shown by application of the synthetic spectra, that the star is a helium-weak type of the titanium-strontium subgroup. Photometric observations confirmed the rotational period of 0.6684 d discovered earlier. Our photometric observations do not permit to find rapid variability exceeding 0.005 mag within the limits of 5 300 min.
- Publication:
-
Astrophysics and Space Science
- Pub Date:
- July 1990
- DOI:
- 10.1007/BF00640707
- Bibcode:
- 1990Ap&SS.169..177H
- Keywords:
-
- A Stars;
- Peculiar Stars;
- Stellar Spectra;
- Stellar Spectrophotometry;
- H Lines;
- Helium;
- Radial Velocity;
- Stellar Rotation;
- Ubv Spectra;
- Astrophysics