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arXiv · 0705.0605

TYC 1031 01262 1: The First Known Galactic Eclipsing Binary with a Type II Cepheid Component

S. V. Antipin·K. V. Sokolovsky·T. I. Ignatieva
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Abstract

We present the discovery and CCD observations of the first eclipsing binary with a Type II Cepheid component in our Galaxy. The pulsation and orbital periods are found to be 4.1523 and 51.38 days, respectively, i.e. this variable is a system with the shortest orbital period among known Cepheid binaries. Pulsations dominate the brightness variations. The eclipses are assumed to be partial. The EB-subtype eclipsing light curve permits to believe that the binary's components are non-spherical.

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S. V. Antipin, K. V. Sokolovsky, T. I. Ignatieva. 2007-05-09. TYC 1031 01262 1: The First Known Galactic Eclipsing Binary with a Type II Cepheid Component. https://doi.org/10.1111/j.1745-3933.2007.00335.x

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