Origin of the orbital period change in contact binary stars
| Parent link: | International Journal of Modern Physics E Vol. 28, iss. 6.— 2019.— [1950044, 11 p.] |
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| Співавтор: | |
| Інші автори: | , , , |
| Резюме: | Title screen 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. Режим доступа: по договору с организацией-держателем ресурса |
| Опубліковано: |
2019
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| Предмети: | |
| Онлайн доступ: | https://doi.org/10.1142/S0218301319500447 |
| Формат: | Електронний ресурс Частина з книги |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=663918 |
| Резюме: | Title screen 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. Режим доступа: по договору с организацией-держателем ресурса |
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| DOI: | 10.1142/S0218301319500447 |