Observations and light curve solutions of the eclipsing binaries KR Lyn, CSS J110212+244412, NSVS 4917488 and NSVS 7336024

Kjurkchieva D.; Popov V.A.; Eneva J.; Petrov N.

doi:10.2298/SAJ170921001K

Serbian Astronomical Journal (Jan 2018)

Observations and light curve solutions of the eclipsing binaries KR Lyn, CSS J110212+244412, NSVS 4917488 and NSVS 7336024

Kjurkchieva D.,
Popov V.A.,
Eneva J.,
Petrov N.

Affiliations

Kjurkchieva D.: Department of Physics, Shumen University, Shumen, Bulgaria
Popov V.A.: Department of Physics, Shumen University, Shumen, Bulgaria + IRIDA Observatory, Rozhen NAO, Bulgaria
Eneva J.: Department of Physics, Shumen University, Shumen, Bulgaria + Medical University, Varna, Bulgaria
Petrov N.: Institute of Astronomy and NAO, Bulgarian Academy of Sciences, Sofia, Bulgaria

DOI: https://doi.org/10.2298/SAJ170921001K
Journal volume & issue: Vol. 2018, no. 196
pp. 21 – 27

Abstract

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We present photometric observations in Sloan filters g’, i’ of the short-period eclipsing stars KR Lyn, CSS J110212+244412, NSVS 4917488 and NSVS 7336024. The light curve solutions revealed that all targets are overcontact binaries whose components are G and K stars. Their temperature differences do not exceed 300 K but they differ considerably in size and mass. NSVS 4917488 and NSVS 7336024 reveal total eclipses and their parameters can be considered as well-determined. We found that KR Lyn, NSVS 4917488 and NSVS 7336024 are of W-subtype while CSS J110212+244412 is A-subtype W UMa-type star.

Published in Serbian Astronomical Journal

ISSN: 1450-698X (Print); 1820-9289 (Online)
Publisher: Astronomical Observatory, Department of Astronomy, Belgrade
Country of publisher: Serbia
LCC subjects: Science: Astronomy
Website: http://saj.matf.bg.ac.rs/

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