Astrometric binaries with invisible components in fields of the axial meridian circle of the Nikolaev Observatory
|1Martynov, MV, 1Maigurova, NV, 1Pinigin, GI |
1Research Institute "Mykolaiv Astronomical Observatory", Mykolaiv, Ukraine
|Kinemat. fiz. nebesnyh tel (Online) 2013, 29(5):75-0|
|Start Page: Positional and Theoretical Astronomy|
Two catalogues (284557 objects in all) were compiled as a result of observations in 2008—2009 with the axial meridian circle of the RI “Nikolaev Astronomical Observatory”. A comparison of quasi-instantaneous measured proper motions with long-term averaged proper motions is used as a procedure of searching for probable candidates in multiple systems. If the differences for proper motions are statistically significant, the objects very probably are double stars. Our list of probable candidates for double and multiple systems with invisible companions contains 9379 objects.
|Keywords: axial мeridian circle, Nikolaev Astronomical Observatory, observations|
1.A. Ivanov, “Catalog of stars with large proper motions (Version 2.0),” Kinematika Fiz. Nebesnykh Tel 24(6), 480–483 (2008).
2.A. N. Koval’chuk, G. I. Pinigin, Yu. I. Protsyuk, et al., CCD-axial meridian circle of the Nikolaev Observatory, Sovremennye problemy i metody astrometrii i geodinamiki: Tr. konf. (Proc. Conf. Modern problems and methods of astrometry and geodynamics), St. Petersburg, 1996, pp. 91–96 [in Russian].
3.N. V. Maigurova, M. V. Martynov, and G. I. Pinigin, “Catalog of stars in the areas of the axial meridian circle of the Nikolaev Observatory,” Kinematika Fiz. Nebesnykh Tel 29(1), 68–80 (2013).
4.E. V. Khrutskaya, A. A. Berezhnoi, and M. Yu. Khovrichev, “Study of the motions of fast stars based on observations obtained with the Pulkovo normal astrograph,” Pis’ma Astron. Zh. 37(6), 458–469 (2011).
5.S. Lepine and M. A. Shara, “Catalog of northern stars with annual proper motions larger than 0.15″ (LSPM-NORTH Catalog),” Astron. J. 129(3), 1483–1522 (2005).
6.R. Wielen, C. Dettbarn, H. Jahreiss, et al., “Indications on the binary nature of individual stars derived from a comparison of their HIPPARCOS proper motions with ground-dased data. I. Basic principles,” Astron. Astrophys. 346, 675–685 (1999).