Radial Velocity and Light Curves Analysis of the Contact Binary V839 Ophiuchi
Source: Astrophysics and Space Science, Volume 288, Number 3, 2003 , pp. 259-267(9)
Abstract: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: 1.61M and 1.49402R for the primary component; 0.50M and 0.90147R for the secondary component. We estimated effective temperatures of 6650±18 (K) for the primary and 6554±15 (K) for the secondary component.
Document Type: Research Article
Affiliations: 1: Physics Department, School of Sciences, Ferdowsi University, Mashad, Iran; Permanent address: Physics Department, School of Sciences, Birjand University, Birjand, Iran;, Email: email@example.com 2: Physics Department, School of Sciences, Ferdowsi University, Mashad, Iran;, Email: firstname.lastname@example.org
Publication date: January 1, 2003