Abstract
The changes in the orbital period of the short-period RS CVn-type binaryBH Vir are studied based on the analysis of the O-C curve formed by allphotoelectric times of light minimum. It was discovered that the orbitalperiod of BH Vir may show a periodic variation with a period of 9.12years. A weak evidence also indicating a small amplitude oscillation witha period of 52.7 years in the change of the orbital period. Two possiblemechanisms (light times effects due to two hypothetical additional bodiesand magnetic activity cycle) that could explained the period behavior arestudied. The periodic changes in the orbital period can be explained asdue either to magnetic activity cycles in the two components or to thelight-times effects of the additional bodies.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Agerer, F. and Huebscher, J.: 1998, Inf.Bull.Variable Stars 4606.
Agerer, F. and Huebscher, J.: 1999, Inf.Bull.Variable Stars 4712.
Applegate, J.H.: 1992, Astrophys.J. 385, 621.
Applegate, J.H. and Patterson, J.: 1987, Astrophys.J. 322, L99.
Chochol, D., Pribulla, T., Teodorani, M., Errico, L., Vittone, A.A., Milano, L. and Barane, F.: 1998, Astron.Astrophys. 340, 415.
Clement, R., Reglero, V., Garcia, M., Fabregat, J. and Suso, J.: 1997, Astron.Astrophys.Suppl. 124, 499.
Derman, E.: 1989, Inf.Bull.Variable Stars 3404.
Hall, D.S.: 1991, Astrophys.J. 380, L85.
Hoffmann, M.: 1982, Astron.Astrophys.Suppl. 47, 561.
Huruhata, M. and Nakamura, T.: 1950, Bull.Tokyo Astron.Obs.II 33, 233.
İbanoğlu, C., Keskin, M.C., Akan, S., Evren, S. and Tunca, Z.: 1994, Astron.Astrophys. 281, 811.
Keskin, V., İbanoĞlu, C., Akan, M.C., et al.: 1994, Astron.Astrophys. 187, 817.
Kitamura, M., Nakamura, T. and Takahashi, C.: 1957, Publ.Astron.Soc.Jpn. 9, 191.
Kalimeris, A., Mitrou, C.K., Doyle, J.G., Antonopoulou, E. and Rovithis-Livaniou, H.: 1995, Astron. Astrophys. 293, 371.
Koch, R.H.: 1967, Astron.J. 72, 411.
Lanza, A.F., Rodonò, M. and Rosner, R.: 1998, Mon.Not.R.Astron.Soc. 296, 893.
Lanza, A.F. and Rodonò, M.: 1999, Astron.Astrophys. 349, 887.
Matese, J.J. and Whitmire, D.P.: 1983, Astron.Astrophys. 117, L7.
Shengbang, Qian, Qingyao, Liu and Yulan, Yang: 1999, Chin.Astron.Astrophys. 23, 317.
Shengbang, Qian, Qingyao, Liu and Yulan, Yang: 1998, Astrophys.Space.Sci. 257, 1. (paper I).
Shengbang, Qian, Qingyao, Liu and Yulan, Yang: 1999, Astrophys.Space.Sci., 266, 529. (paper II).
Rodonò, M., Lanza, A.F. and Catalano, S.: 1995, Astron.Astrophys. 301, 75.
Scaltriti, F., Cellino, A. and Busso, M.: 1985, Astron.Astrophys. 149, 11.
Warner, B.W.: 1988, Nature 336, 129.
Fuyuan, Xiang: 1992, Diploma-Thesis for Master Degree, Yunnan Observatory.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Shengbang, Q., Qingyao, L. & Wenli, T. Orbital Period Studies of RS CVn-type binaries III. BH Virginis. Astrophysics and Space Science 274, 859–866 (2000). https://doi.org/10.1023/A:1026512806446
Issue Date:
DOI: https://doi.org/10.1023/A:1026512806446