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- Title
Discovery of a cyclic period change in the contact binary system V1128 Tau.
- Authors
Liu, L.; Qian, S.-B.; Liao, W.-P.; He, J.-J.; Zhu, L.-Y.; Li, L.-J.; Zhao, E.-G.
- Abstract
We obtained several epochs of light minima and a complete R light curve of the W-type contact binary V1128 Tau in 2009. Two cool spots on the massive component are used to model the photometric light curve. Using all available data we find evidence for a long-term period variation with an amplitude of 0.0050±0.0012 days and a period of 16.7±0.9 years. Using parameters derived from a photometric model of the 2009 light curve we show that this period change could be explained by the Applegate mechanism on one of the components.
- Subjects
BINARY stars; STELLAR evolution; BINARY number system; ASTRONOMICAL photometry; LIGHT curves; ASTROPHYSICS
- Publication
Astrophysics & Space Science, 2011, Vol 334, Issue 1, p131
- ISSN
0004-640X
- Publication type
Article
- DOI
10.1007/s10509-011-0702-1