Visual orbit of the third body on the eclipsing binary SZ Cam
Abstract:On the basis of new speckle interferometric and photometric observations of the eclipsing binary SZ Cam, executed on the 6 m telescope at the Special Astrophysical Observatory, Russian Academy of Sciences, and the 0.5 m telescope of the Astronomical Observatory, Ural State University, and data added from the literature, a complete set of parameters for the apparent relative orbit of the third body are determined for the first time. The mass of the third body, M3=23.4 Mo, and the distance to SZ Cam, d=1125 pc, are estimated. The duality of the third body is confirmed. The assumption is stated that SZ Cam is probably not a member of the open star cluster NGC 1502, on which centre it is projected.
Document Type: Research Article
Affiliations: 1: Astronomical Observatory, Ural State University, Ekaterinburg, Russia 2: Special Astrophysical Observatory, Russian Academy of Sciences, Zelenchukskaya, Karachaevo-Cherkesia, Russia 3: Subaru Telescope, National Astronomical Observatory of Japan, Tokyo, Japan
Publication date: February 1, 2007