New Physical Parametric data of a Binary System V 0829 Aquilae
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Abstract
The aim of the research was to analyze the physical characteristics of a binary star system, V 0829 Aquilae. The data were collected using a photometric technique at Observatory Chalerm Phrakiat 7th Cycle Birthday Anniversary Nakhon Ratchasima, National Astronomical Research Institute of Thailand (Public Organization). The data were analyzed using PHOEBE program. The results show that the binary system V 0829 Aquilae has a new ephemeris equation, HJD (min) = 2452500.442 + 0.221E with an orbital period of 0.221 days and an orbital period increase of 2.2730 × 10–20 seconds per year, the B-V color index of 0.716 and the effective temperature of 5,746.209 Kelvin. When analyzing the physical characteristics, it was found that the equipotential surfaces of the first and the second star are 2.352908 and 2.195246, respectively. The masses of the first and the second are 7.001554 and 1.750388, respectively. Based on the other physical parameters, it can be concluded that a period increase of V 0829 Aquilae found in the study may indicate a possible change on the physical state of this binary system from W Ursae Majoris to Beta Lyrae.
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