Origin of the orbital period change in contact binary stars / V. V. Sargsyan, H. Lenske , G. G. Adamyan, N. V. Antonenko
Уровень набора: International Journal of Modern Physics EЯзык: английский.Резюме или реферат: The evolution of contact binary star systems in mass asymmetry (transfer) coordinate is considered. The orbital period changes are explained by an evolution in mass asymmetry towards the symmetry (symmetrization of binary system). It is predicted that decreasing and increasing orbital periods are related, respectively, with the nonoverlapping and overlapping stage of the binary star during its symmetrization. A huge amount of energy [delta]U 10{41} J is converted from the potential energy into internal energy of the stars during the symmetrization. As shown, the merger of stars in the binary systems, including KIC 9832227, is energetically an unfavorable process. The sensitivity of the calculated results to the values of total mass and orbital angular momentum is analyzed..Примечания о наличии в документе библиографии/указателя: [References: 5 tit.].Аудитория: .Тематика: электронный ресурс | труды учёных ТПУ | close binary stars | mass transfer | mass asymmetry | асимметрия | массообмен | двойные звезды | эволюция | звездные системы | внутренняя энергия | симметризация Ресурсы он-лайн:Щелкните здесь для доступа в онлайнTitle screen
[References: 5 tit.]
The evolution of contact binary star systems in mass asymmetry (transfer) coordinate is considered. The orbital period changes are explained by an evolution in mass asymmetry towards the symmetry (symmetrization of binary system). It is predicted that decreasing and increasing orbital periods are related, respectively, with the nonoverlapping and overlapping stage of the binary star during its symmetrization. A huge amount of energy [delta]U 10{41} J is converted from the potential energy into internal energy of the stars during the symmetrization. As shown, the merger of stars in the binary systems, including KIC 9832227, is energetically an unfavorable process. The sensitivity of the calculated results to the values of total mass and orbital angular momentum is analyzed.
Российский фонд фундаментальных исследований 17-52-12015
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