Photometry of silicon stars. II.
Abstract
Three silicon stars - HD 3580, HD 187473 and HD 212432 - have been reobserved at the European Southern Observatory, La Si1la, for various reasons (earlier observations were published by Hensberge etal. 1977). In the case of HD 3580, arguments in favour of a single wave variation in a period of 1.4788 days are presented. The period of the large amplitude variable star HD 187473 (Au> 02) is considerably refined (P = 4d718) Finally the period that has been proposed in the earlier paper for HD 212432 is confirmed and refined (P = 4d689) Key words: Ap stars - photometry - variable stars
- Publication:
-
Astronomy and Astrophysics Supplement Series
- Pub Date:
- October 1978
- Bibcode:
- 1978A&AS...34...67H
- Keywords:
-
- Peculiar A Stars;
- Periods:Silicon Stars;
- Silicon Stars:Stroemgren Photometry