000 02979nlm1a2200493 4500
001 663918
005 20231030041912.0
035 _a(RuTPU)RU\TPU\network\35088
035 _aRU\TPU\network\35068
090 _a663918
100 _a20210317a2019 k y0engy50 ba
101 0 _aeng
135 _adrcn ---uucaa
181 0 _ai
182 0 _ab
200 1 _aOrigin of the orbital period change in contact binary stars
_fV. V. Sargsyan, H. Lenske , G. G. Adamyan, N. V. Antonenko
203 _aText
_celectronic
300 _aTitle screen
320 _a[References: 5 tit.]
330 _aThe 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.
333 _aРежим доступа: по договору с организацией-держателем ресурса
338 _bРоссийский фонд фундаментальных исследований
_d17-52-12015
461 _tInternational Journal of Modern Physics E
463 _tVol. 28, iss. 6
_v[1950044, 11 p.]
_d2019
610 1 _aэлектронный ресурс
610 1 _aтруды учёных ТПУ
610 1 _aclose binary stars
610 1 _amass transfer
610 1 _amass asymmetry
610 1 _aасимметрия
610 1 _aмассообмен
610 1 _aдвойные звезды
610 1 _aэволюция
610 1 _aзвездные системы
610 1 _aвнутренняя энергия
610 1 _aсимметризация
701 1 _aSargsyan
_bV. V.
_gVazgen Valerikovich
701 1 _aLenske
_bH.
_gHorst
701 1 _aAdamyan
_bG. G.
_gGurgen Grigorjevich
701 1 _aAntonenko
_bN. V.
_cphysicist
_cProfessor of Tomsk Polytechnic University, Doctor of physical and mathematical sciences
_f1964-
_gNikolay Viktorovich
_2stltpush
_3(RuTPU)RU\TPU\pers\35905
712 0 2 _aНациональный исследовательский Томский политехнический университет
_bШкола базовой инженерной подготовки
_bОтделение математики и информатики
_h8031
_2stltpush
_3(RuTPU)RU\TPU\col\23555
801 2 _aRU
_b63413507
_c20210317
_gRCR
856 4 _uhttps://doi.org/10.1142/S0218301319500447
942 _cCF