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

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Özdemir T., Gürol B.

REVISTA MEXICANA DE ASTRONOMIA Y ASTROFISICA, vol.60, pp.205-216, 2024 (SCI-Expanded)

• Publication Type: Article / Article
• Volume: 60
• Publication Date: 2024
• Doi Number: 10.22201/ia.01851101p.2024.60.02.01
• Journal Name: REVISTA MEXICANA DE ASTRONOMIA Y ASTROFISICA
• Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
• Page Numbers: pp.205-216
• Inonu University Affiliated: Yes

Abstract

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.