Astronomy and Astrophysics – Astronomy
Scientific paper
Apr 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010newa...15..356b&link_type=abstract
New Astronomy, Volume 15, Issue 4, p. 356-361.
Astronomy and Astrophysics
Astronomy
Scientific paper
We present new differential, four-color photoelectric photometry for the eclipsing binary TV Cet. UBVR light curves and radial velocities published previously are solved simultaneously using the Wilson-Devinney computer program. Our solutions indicate that TV Cet includes a third light contribution with 2.3% in U, 1.9% in B, 1.3% in V and 1.6% in R. The masses of the component stars are 1.34±0.05 and 1.23±0.05M&sun;, while the radii are 1.47±0.02 and 1.21±0.01R&sun; for the primary and secondary components, respectively. Using new absolute properties and our previous results from period analysis, we calculated the observational and theoretical internal structure constants to be k=-1.66 and k=-2.25, respectively. Taking into account the third light contribution from the Wilson-Devinney solution and properties of the third body orbit from period analysis, the mass of the third body is obtained as 0.56M&sun;, corresponding to the inclination value i3=20°. Evolutionary status of the component stars is also studied. We present the position of the stars in an H-R diagram for solar compositions.
Bozkurt Zeynep
Degirmenci O. L.
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