%0 Journal Article
%T The Light Curve and the Orbital Period Variations of Binary System TT Andromedae
%A Davood Manzoori
%A Salar Abbasvand
%A Vahid Abbasvand
%J International Journal of Astronomy and Astrophysics
%P 112-123
%@ 2161-4725
%D 2017
%I Scientific Research Publishing
%R 10.4236/ijaa.2017.72009
%X The first photoelectric light curve analysis of the TT And system in a broad band filter (400 - 700 nm) was carried out using the PHOEBE program. The absolute dimensions of the system are determined and its evolution is discussed. The most distinct feature of the system is a comparatively very low mass of the cooler component i.e. M2 = 0.26M¡Ñ. Moreover, using the Observed-minus-Calculated data, the period changes of the system are studied, which reveal the presence of a third body orbiting the system with a period P3 = 63.89 yr, superimposed on which is a secular period increase, which is ascribed to mass transfer with a rate −7.60 ¡Á 10−12 M¡Ñ yr−1 from the cooler secondary component.
%K Binaries: Eclipsing
%K Stars: Evolution
%K Stars: Individual (TT And)
%U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=77049