Radial Velocity and Light Curves Analysis of the Contact Binary V839 Ophiuchi

Details Radial Velocity and Light Curves Analysis of the Contact Binary V839 Ophiuchi Radial Velocity and Light Curves Analysis of the Contact Binary V839 Ophiuchi

Sep 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003ap%26ss.288..259p&link_type=abstract

Astrophysics and Space Science, v. 288, Issue 3, p. 259-267 (2003).

Astronomy and Astrophysics

Astrophysics

2

Scientific paper

Complete UBV light curves of the W Ursae Majoris binary V839 Oph obtained in the year 2000 are presented. The available spectroscopic data of V839 Oph is new and we used the first radial velocity data of this system obtained by Rucinski and Lu (1999) for analysis. The radial velocity and light curves analysis was made with the latest version of Wilson programme (1998) and the geometric and physical elements of the system are derived. By searching the simultaneous solutions of the system we have determined the masses and radii of the components: 1.61Msolar and 1.49402Rsolar for the primary component; 0.50Msolar and 0.90147Rsolar for the secondary component. We estimated effective temperatures of 6650+/-18 (K) for the primary and 6554+/-15 (K) for the secondary component.

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