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Speckle interferometry of the binary system 53 Cam

Published online by Cambridge University Press:  02 March 2005

I.I. Balega ,
Y.Y. Balega  and
E.V. Malogolovets
I.I. Balega
Affiliation:
Special Astrophysical Observatory, N.Arkhyz, Karachai-Cherkesia, 369167 Russia email: [email protected], [email protected], [email protected]
Y.Y. Balega
Affiliation:
Special Astrophysical Observatory, N.Arkhyz, Karachai-Cherkesia, 369167 Russia email: [email protected], [email protected], [email protected]
E.V. Malogolovets
Affiliation:
Special Astrophysical Observatory, N.Arkhyz, Karachai-Cherkesia, 369167 Russia email: [email protected], [email protected], [email protected]
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The study of orbital parameters of multiple Ap stars may lead to new suggestions about the origin and magnetic properties of the components. 53 Cam is one of the best studied binaries among Ap stars. However, the nature of its secondary star remains unclear despite the wealth of spectroscopic observations. The system was first directly resolved by speckle interferometry method in 1980 at the 4 m KPNO telescope McAlister et al. (1983). The authors supposed that the magnitude difference between the components could be close to zero. From that time, 16 speckle measurements of the system were made, including 7 observations collected with the SAO 6 m telescope. In addition to relative positions of the components, speckle observations from the 6 m telescope provide high accuracy magnitude difference estimates.To search for other articles by the author(s) go to: http://adsabs.harvard.edu/abstract_service.html

Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 2004 , Issue IAUS224 , July 2004 , pp. 683 - 685
Copyright
© 2004 International Astronomical Union