Period variability in R Aqr.
Abstract
R Aqr is a binary system consisting of a Mira Ceti star and a hot companion with an unusual nebular line spectrum. Variations of the period of R Aqr are compared with variations of the radial velocities of nebular lines in the spectrum of the companion. After elimination of secular variations, a periodic oscillation was noted in the variation of (O-C) with elements: Max (O-C)1 = JD 2441232+8785d.14.E1 (P1 = 24a.07).
- Publication:
-
Soviet Astronomy Letters
- Pub Date:
- October 1976
- Bibcode:
- 1976SvAL....2..169K
- Keywords:
-
- Binary Stars;
- Nebulae;
- Stellar Luminosity;
- Stellar Spectra;
- White Dwarf Stars;
- Companion Stars;
- Computer Techniques;
- Hot Stars;
- Radial Velocity;
- Secular Variations;
- Stellar Models;
- Astrophysics