First multicolor photometry of 1SWASP J130111.22+420214.0 and 1SWASP J231839.72+352848.2


Ulas B. , MICHEL R., SILVA S.

NEW ASTRONOMY, vol.63, pp.61-64, 2018 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 63
  • Publication Date: 2018
  • Doi Number: 10.1016/j.newast.2018.03.002
  • Title of Journal : NEW ASTRONOMY
  • Page Numbers: pp.61-64

Abstract

The first multicolor observations and light curve solutions of the stars 1SWASP J130111.22 + 420214.0 and 1SWASP J231839.72 + 352848.2 are presented. The estimated physical parameters of 1SWASP J130111.22 + 420214.0 are M-1 = 1.0M(circle dot), M-2 = 1.63M(circle dot), R-1 = 0.77R(circle dot), R-2 = 0.91R(circle dot), L-1 = 0.59L(circle dot), and L-2 = 0.68L(circle dot). While a binary model could not be fitted to the light curve of 1SWASP J231839.72 + 352848.2, its Fourier series representation indicates that this system could well be a rotating ellipsoidal variable. The components of 1SWASP J130111.22 + 420214.0 are also compared to other well-known binary systems and their position in mass-radius plane and the Hertzsprung-Russel diagram are argued and possible evolutionary statuses are discussed.