1. The eclipsing binary system with an eccentric orbit V1176 Cas=GSC 4513 2537
- Author
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V. S. Kozyreva, T. Krajci, G. V. Komissarova, A. V. Kusakin, and J. Menke
- Subjects
Physics ,Orbital elements ,Apsidal precession ,Astronomy and Astrophysics ,Orbital eccentricity ,Astrophysics ,Rotation ,Light curve ,Astrophysics::Solar and Stellar Astrophysics ,High Energy Physics::Experiment ,Astrophysics::Earth and Planetary Astrophysics ,Binary system ,Orbit (control theory) ,Line (formation) - Abstract
The eclipsing variable GSC 4513 2537= V1176 Cas is a recently discovered binary system. We have made high precision CCD observations of it during 2009-2010 and obtained light curves. The photometric parameters and orbital elements, periods of the primary and secondary minima, and U, B, and V magnitudes have also been obtained. The rate of rotation of the apsidal line is estimated to be $ {{\dot{\upomega}}_{obs }} $ = 0.08 ± 0.04 / year. This is 5 times the theoretically predicted $ {{\dot{\upomega}}_{obs }} $ = 0.016 ± 0.005 /year. The bulk (80%) of the theoretical rate of rotation of the orbit is in the relativistic component. Unfortunately, the accuracy of the observed rate of orbital rotation of the orbit is low, so getting a more reliable result will require repeating this study in a few years.
- Published
- 2013