Physical and geometric parameters of the evolved binary system HD 6009

Atmospheric modeling and dynamical analysis of the components of the speckle interferometric binary system HD 6009 were used to estimate their individual physical and geometric parameters. Model atmospheres were constructed using a grid of Kurucz's solar metallicity blanketed models and used to compute the individual synthetic spectral energy distribution (SED) for each component separately. These SEDs were combined together to compute the entire SED for the system from the net luminosities of the components A and B located at a distance d from the Earth. We used the modified feedback parameters and the iteration method to get the best fit between the synthetic and observed total SEDs. The physical and geometric parameters of the system's components were derived as T {eff/A} = 5625 ? 75 K, T {eff/B} = 5575 ? 75 K, log g A = 3.75 ? 0.25, log g B = 3.75 ? 0.25, R A = 2.75 ? 0.30 R ?, R B = 2.65 ? 0.30 R ?, , , M A = 1.60 ? 0.20 M ?, M B = 1.46 ? 0.20 M ?, L A = 15.84 ? 1.60 L ?, and L B = 15.83 ? 1.60 L ?, with G6 spectral types for both components