2017PASP..129d4203G

We present a spectroscopic and photometric study of the eclipsing binary TU Canis Majoris aimed to obtain their fundamental stellar parameters and evolutionary stage. Our results indicate that the masses, radii, temperatures, and luminosities for the primary and secondary stars are: M₁=1.761±0.012 M_☉, M₂=1.144±0.010 M_☉, R₁=1.553±0.002 R_☉, R₂=1.075±0.002 R_☉, T₁=8014±151 K, T₂=6060±100 K, L₁=8.913 ±0.695 L_☉, and L₂=1.396±0.097 L_☉. We estimate an age for the system of τ=2.11±0.24×10⁸ years, and a distance of d = 324.81±12.86 pc. In addition, we note that none of the components has filled their respective Roche lobe and both are on the main sequence.