Elemental abundance analyses with DAO spectrograms - XX. The early A stars epsilon Serpentis, 29 Vulpeculae and sigma Aquarii
Abstract
Elemental abundances of the early A stars epsilon Ser, 29 Vul and sigma Aqr are derived consistently with previous studies of this series using spectrograms obtained with Reticon and CCD detectors. The derived abundances confirm that epsilon Ser is a definite Am star. 29 Vul shows evidence for a weakly operating Am star phenomenon. sigma Aqr, a hot Am star prototype, has abundances similar to those of o Peg, another class prototype.
- Publication:
-
Monthly Notices of the Royal Astronomical Society
- Pub Date:
- October 1998
- DOI:
- 10.1046/j.1365-8711.1998.01859.x
- Bibcode:
- 1998MNRAS.300..359A
- Keywords:
-
- STARS: ABUNDANCES;
- STARS: INDIVIDUAL: EPSILON SER;
- STARS: INDIVIDUAL: 29 VUL;
- STARS: INDIVIDUAL: SIGMA AQR