English

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

Astrophysics 2014-11-18 v2

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.

Keywords

Cite

@article{arxiv.0705.0605,
  title  = {TYC 1031 01262 1: The First Known Galactic Eclipsing Binary with a Type II Cepheid Component},
  author = {S. V. Antipin and K. V. Sokolovsky and T. I. Ignatieva},
  journal= {arXiv preprint arXiv:0705.0605},
  year   = {2014}
}
R2 v1 2026-06-21T08:24:56.098Z