GSC 4560--02157: a New Long-period Eclipsing Cataclysmic Variable Star
Abstract
We study the newly discovered variable star GSC 4560--02157. CCD photometry was performed in 2013--2014, and a spectrum was obtained with the 6-m telescope in June, 2014. GSC 4560--02157 is demonstrated to be a short-period (P=0.265359d) eclipsing variable star. All its flat-bottom primary minima are approximately at the same brightness level, while the star's out-of-eclipse brightness and brightness at secondary minimum varies considerably (by up to 0.6m) from cycle to cycle. Besides, there are short-term (time scale of 0.03-0.04 days) small-amplitude brightness variations out of eclipse. This behavior suggests cataclysmic nature of the star, confirmed with a spectrum taken on June 5, 2014. The spectrum shows numerous emissions of the hydrogen Balmer series, HeI, HeII.
Keywords
Cite
@article{arxiv.1411.3847,
title = {GSC 4560--02157: a New Long-period Eclipsing Cataclysmic Variable Star},
author = {A. V. Khruslov and A. V. Kusakin and E. A. Barsukova and V. P. Goranskij and A. F. Valeev and N. N. Samus},
journal= {arXiv preprint arXiv:1411.3847},
year = {2014}
}
Comments
38 pages, 6 figures