Spectrum and light variations of the peculiar A star HD 51418.
Abstract
HD 51418 is a previously unknown Ap star of spectral type A0p (Eu-Sr-Cr). It exhibits marked variations in the Eu II and Sr II lines, while variations in other elements also appear to be present. Light variations of 0.17 mag in V, 0.08 mag in B, and 0.07 mag in U have been found, the V amplitude being larger than for any other peculiar A star. H variations have also been observed. Combined photometric and spectroscopic observations yield a period of 5.4379 days. Subject headings: peculiar A stars - spectrum variables - stars, individual
- Publication:
-
The Astrophysical Journal
- Pub Date:
- July 1973
- DOI:
- 10.1086/152260
- Bibcode:
- 1973ApJ...183..701G