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


TANRIVER M. , Guerrero Pena C. A. , Michel Murillo R., Pires R.

New Astronomy, vol.81, 2020 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 81
  • Publication Date: 2020
  • Doi Number: 10.1016/j.newast.2020.101440
  • Title of Journal : New Astronomy
  • Keywords: Stars: binaries: eclipsing, Stars: fundamental parameters, Technique: photometry, Stars: individual (1SWASP J15133589-3725239 1SWASP J22310605-1940584), EFFECTIVE TEMPERATURE SCALE, BOLOMETRIC CORRECTIONS, LIGHT CURVES, STAR LIGHT, COLOR

Abstract

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 J151335893725239 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: M-1 = 2.578 M-circle dot, M-2 = 1.741 M-circle dot, R-1 = 1.113 R-circle dot and R-2 = 0.928 R-circle dot for 1SWASP J15133589-3725239 and M-1 = 0.743 M-circle dot, M-2 = 0.469 M-circle dot, R-1 = 0.715 R-circle dot and R-2 = 0.578 R-circle dot for 1SWASP J22310605-1940584. The evolutionary state of the systems is also discussed.