IO COM: IS IT A NON-SECONDARY MINIMUM STAR?

摘要

Four-color photometry of 10 Corn, a detached eclipsing binary with a long period ( similar to 53 d), was accomplished in 2004-2008. The absolute astrophysical and orbital parameters of the system were determined by the analysis of the light and radial velocity curves. No secondary minima in the light curves were detected. It was revealed that 10 Corn is the system with a highly eccentric orbit consisting of the components of mid-F spectral types. The calculated masses and radii of the primary and secondary components are: 1.32 M circle dot and 1.21 M circle dot, and 2.45 R circle dot and 1.51 R circle dot, respectively. In the HR diagram, both components of the system are in agreement with the PARSEC isochrones for the ages between 1.5 and 2.2 Gyr and the metallicities Z between 0.01 and 0.02.