Origin of the orbital period change in contact binary stars; International Journal of Modern Physics E; Vol. 28, iss. 6

Origin of the orbital period change in contact binary stars; International Journal of Modern Physics E; Vol. 28, iss. 6

Dettagli Bibliografici
Parent link:	International Journal of Modern Physics E Vol. 28, iss. 6.— 2019.— [1950044, 11 p.]
Ente Autore:	Национальный исследовательский Томский политехнический университет Школа базовой инженерной подготовки Отделение математики и информатики
Altri autori:	Sargsyan V. V. Vazgen Valerikovich, Lenske H. Horst, Adamyan G. G. Gurgen Grigorjevich, Antonenko N. V. Nikolay Viktorovich
Riassunto:	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
Lingua:	inglese
Pubblicazione:	2019
Soggetti:	электронный ресурс труды учёных ТПУ close binary stars mass transfer mass asymmetry асимметрия массообмен двойные звезды эволюция звездные системы внутренняя энергия симметризация
Accesso online:	https://doi.org/10.1142/S0218301319500447
Natura:	Elettronico Capitolo di libro
KOHA link:	https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=663918

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