Period variations of Algol-type eclipsing binaries AD And, TW Cas and IV Cas
arXiv:1801.09953 · doi:10.1088/1674-4527/18/4/47
Abstract
We present new analysis of O-C diagrams variations of three Algol-type eclipsing binary stars AD And, TW Cas and IV Cas. We have used all published minima times (including visual and photographic) as well as new determined ones from our and SuperWasp observations. We determined orbital parameters of the 3rd bodies in the systems with statistically significant errors, using our code based on genetic algorithms and Markov Chain Monte Carlo simulation. We confirmed multiple nature of AD And and triple-star model of TW Cas and we proposed quadruple-star model of IV Cas.
10 pages, 5 figures, accepted to Research in Astron. Astrophys
References in corpus (4)
- Period changes in six contact binaries: WZ And, V803 Aql, DF Hya, PY Lyr, FZ Ori, and AH Tau
- Phenomenological modelling of eclipsing system light curves
- A comprehensive study of six Algol type binaries
- A fresh insight into the evolutionary status and third body hypothesis of the eclipsing binaries AD Andromedae, AL Camelopardalis, and V338 Herculis