Absolute and geometric parameters of W UMa type contact binary TYC 1174-344-1

Details Absolute and geometric parameters of W UMa type contact binary TYC 1174-344-1 Absolute and geometric parameters of W UMa type contact binary TYC 1174-344-1

Jul 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011newa...16..242g&link_type=abstract

New Astronomy, Volume 16, Issue 4, p. 242-249.

Astronomy and Astrophysics

Astronomy

Scientific paper

We present the results of our investigation on the geometrical and physical parameters of W UMa-type binary TYC1174-344-1 from analyzed CCD (BVRI) light curves and radial velocity data. The photometric data were obtained in 2009 at Ankara University Observatory (AUO) and the spectroscopic observations were made in 2008 at Astrophysical Observatory of Asiago (Italy). Light and radial velocity observations were analyzed simultaneously by using the well-known Wilson-Devinney (2007 revision) code to obtain absolute and geometrical parameters. According to our solutions, the system is found to be a low mass-ratio A-type W UMa system. Combining our photometric solution with the spectroscopic data, we derived mass and radii of the eclipsing system as M1 = 1.381 M&sun;, M2 = 0.258 M&sun;, R1 = 1.449 R&sun; and R2 = 0.714 R&sun;. We finally discussed the evolutionary condition of the system.

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