Period variations of the eclipsing binary RZ Cassiopeiae.
Abstract
Summary. Three new photoelectric minima of RZ Cassiopeiae are given together with a discussion of the period changes based upon the entire available photoelectric material. The OC diagram for these well determined epochs of minimum light indicates a rather unusual series of some 10 sudden period changes within 32 years, the AP values lying between -1.8s and +1.8s. Earlier proposals of a possible apsidal motion or light time orbit should therefore be discounted. Key words: eclipsing binaries - period changes - apsidal motion
- Publication:
-
Astronomy and Astrophysics
- Pub Date:
- January 1974
- Bibcode:
- 1974A&A....30..259H