LIGHT AND FREQUENCY ANALYSIS OF DETACHED ECCENTRIC BINARY SYSTEM DT CAM WITH PRE-MAIN SEQUENCE COMPONENT

In this study we analyzed TESS data of detached eccentric binary system DT Cam and we obtained the first physical parameters of the components. We found that the out-of-eclipse variation of the system shows a small amplitude periodic feature. Most of the frequencies obtained are related with the orbital variation except one, for which the period was determined as ≈0.605 days. The masses and radii of the primary and secondary components were calculated as M1 = 1.793M⊙, M2 = 1.414M⊙, R1 = 1.355R⊙, and R2 = 1.522R⊙, respectively. Considering the physical properties of the primary component we concluded that it is a rotational variable. We found that the massive component is smaller than the low-mass component. It seems that the secondary component is a pre-main sequence star, which is important for the understanding of stellar structure and evolution.