Elemental abundance analyses with DAO spectrograms - XXII. The B9-A3 stars λ Ursae Majoris, 59 Herculis, 14 Cygni and 29 Cygni
Abstract
Elemental abundances of the moderately rotating B9-A3 stars λ UMa, 59 Her, 14 Cyg and 29 Cyg have been derived in a consistent manner with previous studies of this series from spectrograms obtained with Reticon and CCD detectors. The derived elemental abundances show that λ UMa is a mild Am star, while 59 Her is slightly metal-rich. Although 14 Cyg has values closer to solar than these stars, its subsolar Ca and Sc abundances indicate that it might be the hottest known hot-Am star. 29 Cyg is a metal-poor λ Boo star.
- Publication:
-
Monthly Notices of the Royal Astronomical Society
- Pub Date:
- November 1999
- DOI:
- 10.1046/j.1365-8711.1999.02938.x
- Bibcode:
- 1999MNRAS.310..146A
- Keywords:
-
- STARS: ABUNDANCES;
- STARS: CHEMICALLY PECULIAR;
- STARS: INDIVIDUAL: λ UMA;
- STARS: INDIVIDUAL: 59 HER;
- STARS: INDIVIDUAL: 14 CYG;
- STARS: INDIVIDUAL: 29 CYG