Journal Article

First detailed analysis of multiple system V2083 Cyg

P. Zasche, P. Svoboda and M. Šlechta

in Monthly Notices of the Royal Astronomical Society

Published on behalf of The Royal Astronomical Society

Volume 421, issue 2, pages 1196-1200
Published in print April 2012 | ISSN: 0035-8711
Published online March 2012 | e-ISSN: 1365-2966 | DOI:
First detailed analysis of multiple system V2083 Cyg

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The main aim of this paper is the first detailed analysis of multiple system V2083 Cyg, to reveal its basic physical properties. The system was studied using the methods of light-curve and radial-velocity curve analysis, together with interferometric data from the visual pair obtained during the last century. It was found that the close subsystem contains two very similar stars of spectral type A7–8. Moreover, a third body is orbiting around this pair with a period of about 177 yr. Due to the discrepancy in the total mass derived with the two methods, the possibility arises that the third body is perhaps also a binary, or some object with lower luminosity but higher mass than a normal main-sequence star. Another explanation is that the Hipparcos value of parallax is incorrect and the system is much closer to the Sun.

Keywords: binaries: eclipsing; binaries: visual; stars: fundamental parameters; stars: individual: V2083 Cyg

Journal Article.  3598 words.  Illustrated.

Subjects: Astronomy and Astrophysics

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