First photometric study of two contact binaries: 1SWASP J15133589-3725239, 1SWASP J22310605-1940584

•We present the first analysis of photometric observations of 1SWASP J15133589-3725239, 1SWASP J22310605-1940584.•New light elements were obtained.•We present spot parameters of 1SWASP J15133589-3725239.•We were performed the spotless solution for 1SWASP J22310605-1940584.•The geometrical and physic...

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Veröffentlicht in:New astronomy 2020-11, Vol.81, p.101440, Article 101440
Hauptverfasser: Tanriver, Mehmet, Guerrero Pena, Carlos Alberto, Michel Murillo, Raul, Pires, Roberto
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Sprache:eng
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Zusammenfassung:•We present the first analysis of photometric observations of 1SWASP J15133589-3725239, 1SWASP J22310605-1940584.•New light elements were obtained.•We present spot parameters of 1SWASP J15133589-3725239.•We were performed the spotless solution for 1SWASP J22310605-1940584.•The geometrical and physical parameters of the binary systems were derived. We present the results of our investigation and first analysis of the geometrical and physical parameters of the 1SWASP J15133589-3725239 and 1SWASP J22310605-1940584 W UMa-type binary systems. Light curve analysis was performed with the PHOEBE0.31a interface program based on the Wilson-Devinney code. New times of minima and light elements have been determined. According to our solution, the 1SWASP J15133589-3725239 and 1SWASP J22310605-1940584 binary systems are respectively found to be A- and W-type W UMa systems. We derived the following masses and radii for the components of these eclipsing systems: M1=2.578 M⊙, M2=1.741 M⊙, R1=1.113 R⊙ and R2=0.928 R⊙ for 1SWASP J15133589-3725239 and M1=0.743 M⊙, M2=0.469 M⊙, R1=0.715 R⊙ and R2=0.578 R⊙ for 1SWASP J22310605-1940584. The evolutionary state of the systems is also discussed.
ISSN:1384-1076
1384-1092
DOI:10.1016/j.newast.2020.101440