Fundamental Parameters of the Eclipsing Binary TU Canis Majoris

• Published in: Publications of the Astronomical Society of the Pacific Vol. 129; no. 974; p. 44203
• Main Authors: Garcés L., J., Mennickent, R. E., Zharikov, S.
• Format: Journal Article
• Language: English
• Published: The Astronomical Society of the Pacific 01-04-2017
• Subjects: binaries: eclipsing; stars: fundamental parameters
• ISSN: 0004-6280; 1538-3873
• DOI: 10.1088/1538-3873/aa5b7f

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: M 1 = 1.761 0.012 M , M 2 = 1.144 0.010 M , R 1 = 1.553 0.002 R , R 2 = 1.075 0.002 R , T 1 = 8014 151 K, T 2 = 6060 100 K, L 1 = 8.913 0.695 L , and L 2 = 1.396 0.097 L . We estimate an age for the system of τ = 2.11 0.24 × 10 8 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.