The early-type eclipsing contact binary TY Puppis

Details The early-type eclipsing contact binary TY Puppis The early-type eclipsing contact binary TY Puppis

May 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993ap%26ss.203..161g&link_type=abstract

Astrophysics and Space Science (ISSN 0004-640X), vol. 203, no. 1, p. 161-167.

Astronomy and Astrophysics

Astrophysics

5

Binary Stars, Ephemerides, Light Curve, Variable Stars, Astronomical Photometry, Mass Ratios, Space Observations (From Earth), Stellar Systems

Scientific paper

In this paper we present the BV photoelectric light curves of the W UMa-type eclipsing binary TY Pup. We have gained ephemerides by means of the times of minima. The obtained light curves have been solved using Wilson-Devinney's synthetic code. The results indicate that TY Pup is a contact system with a mass ratio of 0.185 and a large degree of overcontact of 52 percent. Combined with spectroscopic material, absolute parameters of TY Pup are derived. It may be concluded that TY Pup is an evolved contact binary.

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