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


Ulas B. , MICHEL R., SILVA S.

NEW ASTRONOMY, cilt.63, ss.61-64, 2018 (SCI İndekslerine Giren Dergi) identifier identifier

Özet

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.