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DOE OSTI · 22089739

THE INTERACTING EARLY-TYPE BINARY V382 Cyg

Yasarsoy, B.·Yakut, K.
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Abstract

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{sub 1} = 27.9(5) M{sub Sun }, M{sub 2} = 20.8(4) M{sub Sun }, R{sub 1} = 9.7(2) R{sub Sun }, R{sub 2} = 8.5(2) R{sub Sun }, log ({sub 1}/L{sub Sun }) = 5.152(20), and log (L{sub 2}/L{sub Sun }) = 4.954(19) while the separation of the components is a = 23.4 R{sub Sun }. 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) Multiplication-Sign 10{sup -7} days yr{sup -1} that can be interpreted in terms of the high-mass transfer (dM/dt 6.1(5) Multiplication-Sign 10{sup -6} M{sub Sun} yr{sup -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.

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79 ASTRONOMY AND ASTROPHYSICSASTRONOMYASTROPHYSICSBINARY STARSDIAGRAMSECLIPSEEMISSION SPECTROSCOPYMASS TRANSFERMATHEMATICAL SOLUTIONSPHOTOMETRYRADIAL VELOCITYSTAR EVOLUTIONVISIBLE RADIATION

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Yasarsoy, B., Yakut, K.. 2013-01-01. THE INTERACTING EARLY-TYPE BINARY V382 Cyg. https://doi.org/10.1088/0004-6256%2F145%2F1%2F9

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