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Paper detail

GSC 4560--02157: a New Long-period Eclipsing Cataclysmic Variable Star

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.

preprint2014arXivOpen access
A. V. KhruslovA. V. KusakinE. A. BarsukovaV. P. GoranskijA. F. ValeevN. N. Samus
astro-ph.SR
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A. V. KhruslovA. V. KusakinE. A. BarsukovaV. P. GoranskijA. F. ValeevN. N. Samus

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