Abstract
Results from an analysis of a forty year series of photographic observations of the binary star 61 Cyg on the 26 inch refractor at the Pulkovo Observatory are presented. The orbit is constructed and the sum of the masses of the components is determined from the relative positions of the components. A study of the individual motions of the components of 61 Cyg relative to the surrounding stars yields their mass ratio and the masses of the main and secondary components, 0.74 and 0.46 solar masses, respectively. The relative motion of the components is found to have a fluctuating component with a period of 6.5 years which may be caused, in particular, by the presence in the system of a dark, low-mass companion.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
K. A. Strand, Publ. Astron. Soc. Pacif. 55, 322 (1943).
A. A. Kiselev, and L. G. Romanenko, Izvestiya GAO [in Russian], No. 213, 155 (1998).
J. Wilsing, Sitzungber. Academ. zu Berlin 2, 879 (1893).
A. N. Deich, Izvestiya GAO [in Russian], No. 166, 138 (1960).
A. N. Deich and O. N. Orlova, Astron. zh [in Russian]. 54, 327 (1977).
H. A. McAlister, W. I. Hartkopf, D. J. Hutter, M. M. Shara, and O. G. Franz, Astron. J. 93, 183 (1987).
P. J. Jostis, Low. Observ. Bull., No. 167, 16 (1983).
G. W. Marcy and G. H. Chen, Astrophys. J. 390, 550 (1992).
N. P. Pitjev and L. L. Sokolov, in: Proc. of Meeting “Order and Chaos in Stellar and Planetary Systems” (Saint Petersburg, Russia, 17–24 August 2003), p. 76 (2003).
B. Campbell, G. A. H. Walker, and S. Yang, Astrophys. J. 331, 902 (1988).
O. C. Wilson, Astrophys. J. 226, 379 (1978).
D. J. Schroeder, D. A. Golimowski, R. A. Brukardt et al., Astron. J. 119, 906 (2000).
D. L. Gorshanov, N. A. Shakht, E. V. Polyakov, A. A. Kiselev, and I. I. Kanaev, Izvestiya GAO [in Russian], No. 216, 100 (2002).
A. A. Kiselev, O. A. Kalinichenko, G. A. Plyugin et al., Catalog of Relative Positions and Motions of 200 Visual-binary Stars from Observations at Pulkovo on the 26″ Refractor during 1960–1986 [in Russian], Nauka, Leningrad, pp. 1–39 (1988).
D. L. Gorshanov, N. A. Shakht, A. A. Kiselev, and E. V. Polyakov, Izvestiya GAO [in Russian], No. 217, 182 (2004).
A. A. Kiselev and O. A. Kiyaeva, Astron. zh. [in Russian] 57, 1227 (1980).
A. A. Kiselev, Theoretical Foundations of Photographic Astrometry [in Russian], Nauka, Moscow (1989), 260 pp.
L. G. Romanenko and E. L. Chentsov, Astron. zh. [in Russian] 71, No. 2, 278 (1994).
C. W. Allen, Astrophysical Quantities [Russian translation], Mir, Moscow (1977), 446 pp.
D. C. Black and J. D. Scargle, Astrophys. J. 263, 854 (1982).
V. V. Vityazev, Analysis of Nonuniform Time Series [in Russian], Izd-vo. S.-Peterb. un-ta. (2001), 68 pp.
D. L. Gorshanov, Izvestiya GAO, [in Russian] No. 217, 485 (2004).
D.L. Gorshanov, N.A. Shakht, A.A. Kisselev, E.V. Poliakow, Proc. Coll. IAU 197, 91 (2005).
Author information
Authors and Affiliations
Additional information
__________
Translated from Astrofizika, Vol. 49, No. 3, pp. 453–465 (August 2006).
Rights and permissions
About this article
Cite this article
Gorshanov, D.L., Shakht, N.A. & Kisselev, A.A. Observations of the binary star 61 Cyg on the 26 inch refractor at the Pulkovo observatory. Astrophysics 49, 386–396 (2006). https://doi.org/10.1007/s10511-006-0038-7
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/s10511-006-0038-7