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arXiv · 1406.0499

Complex Analysis of the Stellar Binary V446\,Cep; A New Massive Eclipsing Binary in Cepheus\,OB2 Association

Ö. Çakırlı·C. Ibanoglu·E. Sipahi·A. Frasca·G. Catanzaro
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Abstract

We present new spectroscopic observations of the early type, double-lined eclipsing binary V446\,Cep. The radial velocities and the photometric data obtained by $Hipparcos$ were analysed for deriving the astrophysical parameters of the components. Masses and radii were determined as M$_p$=17.94$\pm$1.16 M$_{\odot}$ and R$_p$=8.33$\pm$0.29 R$_{\odot}$, M$_s$=2.64$\pm$0.30 M$_{\odot}$ and R$_s$=2.13$\pm$0.10 R$_{\odot}$ for the components of V446\,Cep. Our analyses show that V446\,Cep is a detached Algol-type system. Based on the position of the components plotted on the theoretical Hertzsprung-Russell diagram, we estimate that the age of V446\,Cep is about 10 Myr, neglecting the effects of mass-loss and mass exchange between the components. Using the UBVJHK magnitudes and interstellar absorption we estimated the mean distance to the system V446\,Cep as 1100$\pm$62\,pc.

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Ö. Çakırlı, C. Ibanoglu, E. Sipahi, A. Frasca, G. Catanzaro. 2014-06-02. Complex Analysis of the Stellar Binary V446\,Cep; A New Massive Eclipsing Binary in Cepheus\,OB2 Association. https://arxiv.org/abs/1406.0499

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