THE INTERACTING EARLY-TYPE BINARY V382 Cyg
Makaleler > Tam Makale · 2012
Yazarlar: B. Yaşarsoy, K. Yakut
The Astronomical Journal, Uluslararası, Wos, 2012, cilt 145, ss 9-9
DOI: 10.1088/0004-6256/145/1/9
Özet
We analyze photometric and spectroscopic data and study the orbital period of the early-type interacting binary system V382 Cyg by using all the available data. We obtain a simultaneous light and radial velocity curve solution. The derived physical parameters of the primary and secondary stellar components are M 1 = 27.9(5) M ☉ , M 2 = 20.8(4) M ☉ , R 1 = 9.7(2) R ☉ , R 2 = 8.5(2) R ☉ , log ( L 1 / L ☉ ) = 5.152(20), and log ( L 2 / L ☉ ) = 4.954(19) while the separation of the components is a = 23.4 R ☉ . Newly obtained parameters yield the distance of the system to be 1466(76) pc. Analyses of the mid-eclipse times indicate a period increase of dP / dt = 4.2(1) × 10 −7 days yr −1 that can be interpreted in terms of the high-mass transfer ( dM / dt = 6.1(5) × 10 −6 M ☉ yr −1 ) from the less massive component to the more massive component. Finally, we model the evolution of the components using non-conservative codes and discuss the results obtained. The age of the binary system is estimated to be 3.85 Myr.