Io com: Is it a non-secondary minimum star?
Makaleler > Tam Makale · 2014
Yazarlar: Günay TAŞ, Günay Taş, Mustafa Serdar EVREN
Baltic Astronomy, SCI Expanded İndekslerine Giren Dergi, Uluslararası, 2014, cilt 23, ss 27-36
Özet
Four-color photometry of IO Com, a detached eclipsing binary with a long period (∼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 IO Com 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⊙ and 1.21 M⊙, and 2.45 R⊙ and 1.51 R⊙, 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.