Abstract
The A-type W UMa system V566 Oph was observed photoelectrically in two wavebands (B andV) in the years 1988-1989 at the Kryonerion Astronomical Station of the National Observatory of Athens, Greece. The light curves of the system are analyzed using frequency-domain techniques and new geometric and photometric elements are derived. These elements are combined with the more recent spectroscopic data based on Reticon observations to yield the absolute parameters of the system. The evolutionary status of the system is considered and it is found that V566 Oph has started its evolution away from the Main Sequence. The period of the system continues to increase.
Similar content being viewed by others
References
Al-Naimiy, H.M.: 1978,Astrophys. Space Sci. 53, 181.
Berthier, E.: 1975,Astron. Astrophys. 40, 237.
Binnendijk, L.: 1959,Astron. J. 64, 65.
Binnendijk, L.: 1970,Vistas in Astron. 12, 217.
Binnendijk, L.: 1977,Vistas in Astron. 21, 359.
Bookmyer, B.B.: 1976,Publ. Astron. Soc. Pacific 88, 473.
Cruddace, R.G. and Dupree, A.K.: 1984,Astrophys. J. 277, 263.
Eaton, J.: 1986,Acta Astron. 36, 275.
Hardie, R.H.: 1962, in W.A. Hiltner (ed.),Astronomical Techniques, University of Chicago Press, Chicago.
Heard, J.F.: 1965,J. Roy. Astron. Soc. Canada 59, 258.
Hill, G., Fisher, W. A. and Holmgren, D.: 1989,Astron. Astrophys. 218, 152.
Hoffmeister, C.: 1935,Astron. Nachr. 255, 401.
Hughes, V.A. and McLean, B.J.: 1984,Astrophys. J. 278, 716.
Hutchings, J.B. and Hill, G.: 1973,Astrophys. J. 179, 539.
Kaluzny, J.: 1985,Acta Astron. 35, 313.
Kopal, Z.: 1959,Close Binary Systems, Chapman-Hall and John Wiley, London and New York.
Kopal, Z.: 1976,Astrophys. Space Sci. 45, 269.
Kopal, Z.: 1977,Astrophys. Space Sci. 51, 439.
Kopal, Z.: 1979,Language of the Stars, D. Reidel Publ. Co., Dordrecht, The Netherlands.
Kholopov, P.N.et al.: 1987,General Catalogue of Variable Stars, Moscow.
Kwee, K.K. and Van Woerden, H.: 1956,Bull. Astron. Inst. Neth. 12, 327.
Iben, I.: 1967,Ann. Rev. Astron. Astrophys. 5, 571.
Lafta, S.J. and Grainger, J.F.: 1985,Astrophys. Space Sci. 114, 23.
Maceroni, C., Milano, L. and Russo, G.: 1985,Monthly Notices Roy. Astr. Soc. 217, 843.
McLean, B.J.: 1983,Monthly Notices Roy. Astr. Soc. 204, 817.
Mochnacki, S.W.: 1981,Astrophys. J. 245, 650.
Mochnacki, S.W. and Doughty, N.A.: 1972,Monthly Notices Roy. Astr. Soc. 156, 51.
Nagy, T.A.: 1977,Publ. Astron. Soc. Pacific. 89, 366.
Seeds, M.A. and Dawson, D.W.: 1975,I.B.V.S. No.2836.
Van Hamme, W. and Wilson, R.E.: 1985,Astron. Astrophys. 152, 25.
Vilhu, O. and Walter, F.M.: 1987,Astrophys. J. 321, 958.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Niarchos, P.G., Rovithis-Livaniou, H. & Rovithis, P. A photometric study of V566 ophiuchi. Astrophys Space Sci 203, 197–210 (1993). https://doi.org/10.1007/BF00658988
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF00658988