Period Change of Eclipsing Binaries from the ASAS Catalog

Details Period Change of Eclipsing Binaries from the ASAS Catalog Period Change of Eclipsing Binaries from the ASAS Catalog

2006-07-10

arxiv.org/abs/astro-ph/0607186v1

Astronomy and Astrophysics

Astrophysics

Published in Proceedings of the 13th Young Scientists' Conference on Astronomy and Space Physics, held in Kyiv, Ukraine, April

Scientific paper

We present a preliminary statistical analysis of a period change of eclipsing binaries from the ASAS Catalog of Variable Stars. For each contact and semidetached system brighter than 13.3$mag$ (in V) with a period shorter than 0.4 days and at least 300 observation points we have found an angular velocity $\omega$ and its time derivative $\frac{d\omega}{dt}$. According to our accuracy there is no evidence that average $\frac{d\omega}{dt}$ differs from 0. Light curves for selected stars are presented.

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