2015
DOI: 10.1088/1674-4527/15/7/008
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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 = 0.265359 d ) 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 0.6 m ) from cycle to cycle. Besides, there are short-term … Show more

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Cited by 3 publications
(13 citation statements)
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“…Aperture photometry was performed with the MAXIM DL package. All mideclipse times (including the data published by Khruslov et al (2015)) were determined by using a parabolic fitting method because the light variations around those minima are nearly-symmetrical. All available CCD mid-eclipse times of GSC 4560-02157 are listed in Table 1.…”
Section: Observations and Data Reductionmentioning
confidence: 99%
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“…Aperture photometry was performed with the MAXIM DL package. All mideclipse times (including the data published by Khruslov et al (2015)) were determined by using a parabolic fitting method because the light variations around those minima are nearly-symmetrical. All available CCD mid-eclipse times of GSC 4560-02157 are listed in Table 1.…”
Section: Observations and Data Reductionmentioning
confidence: 99%
“…Since its discovery, the changes in the orbital period have never been analyzed. By adopting photometric data from Khruslov et al (2015), a total of 16 minima were obtained. Moreover, we also observed this target on 2016 April 22 and 28 and two mid-eclipse times were measured.…”
Section: Revised Ephemerismentioning
confidence: 99%
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