The surface parameters and composition of some high velocity A-stars.
Abstract
Continuum and line spectrophotometry of bright high velocity A-stars is reported and effective temperatures and surface gravities are derived. The surface abundance of Ca is found from the strength of the line Ca ii K A 3933A and compared with that in Population I stars of the same temperature. Seven stars of the sample are blue horizontal branch stars. Only two stars, 7 Sex and HD 26298, appear to have Ca abundances which are near solar.
- Publication:
-
Monthly Notices of the Royal Astronomical Society
- Pub Date:
- 1972
- DOI:
- 10.1093/mnras/157.2.171
- Bibcode:
- 1972MNRAS.157..171R