Abstract
A short period eclipsing binary star CV Boo is tested for the possible existence of additional bodies in the system with a help of the light equation method. We use data on the moments of minima from the literature as well as from our observations during 2014 May–July. A variation of the CV Boo’s orbital period is found with a period of \({\approx}75~\mbox{d}\). This variation can be explained by the influence of a third star with a mass of \({\approx}0.4~\mbox{M}_{\odot}\) in an eccentric orbit with \(e\approx0.9\). A possibility that the orbital period changes on long time scales is discussed. The suggested tertiary companion is near the chaotic zone around the central binary, so CV Boo represents an interesting example to test its dynamical evolution. A list of 14 minima moments of the binary obtained from our observations is presented.
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Applegate, J.H.: Astrophys. J. 385, 621 (1992). doi:10.1086/170967
Borkovits, T., Forgács-Dajka, E., Regály, Zs.: Astron. Astrophys. 473, 191 (2007). doi:10.1051/0004-6361:20077793
B.R.N.O. Project—Eclipsing Binaries database (2016), http://var2.astro.cz/ocgate/?lang=en
Hamers, A.S., Pols, O.R., Claeys, J.S.W., Nelemans, G.: Mon. Not. R. Astron. Soc. 430, 2262 (2013). doi:10.1093/mnras/stt046
Holman, M.J., Wiegert, P.A.: Astron. J. 117, 621 (1999). doi:10.1086/300695
Iben, I. Jr., Tutukov, A.V.: Astrophys. J. 511, 324 (1999). doi:10.1086/306672
Khaliullina, A.I., Khaliullin, K.F.: Sov. Astron. 28, 228 (1984)
Kozyreva, V.S., Kusakin, A.V., Khaliullin, Kh.F.: Astron. Lett. 31, 117 (2005). doi:10.1134/1.1862352
Kozyreva, V.S., Zakharov, A.I.: Astron. Lett. 27, 712 (2001). doi:10.1134/1.1415860
Kushnir, D., Katz, B., Dong, S., Livne, E., Fernández, R.: Astrophys. J. 778, L37 (2013). doi:10.1088/2041-8205/778/2/L37
Li, G., Naoz, S., Holman, M., Loeb, A.: Astrophys. J. 791, 86 (2014). doi:10.1088/0004-637X/791/2/86
Li, G., Naoz, S., Holman, M., Loeb, A.: Astrophys. J. 802, 71 (2015). doi:10.1088/0004-637X/802/1/71
Martynov, D.Y.: Izv. Astron. Obs. E. 25, 5 (1948)
Naoz, S., et al.: Mon. Not. R. Astron. Soc. 431, 2155 (2013). doi:10.1093/mnras/stt302
Nazin, S.N., et al.: Gravit. Cosmol. 4, 150 (1998)
Peniche, R., Gonzalez, S.F., Pena, J.H.: Inf. Bull. Var. Stars 2690, 1 (1985)
Popper, D.M.: Astron. J. 119, 2391 (2000). doi:10.1086/301335
Portegies Zwart, S., van den Heuvel, E.P.J.: Mon. Not. R. Astron. Soc. 456, 3401 (2016). doi:10.1093/mnras/stv2787
Saito, M.M., Tanikawa, K., Orlov, V.V.: Celest. Mech. Dyn. Astron. 116, 1 (2013). doi:10.1007/s10569-013-9474-y
Samus, N.N., et al.: General Catalogue of Variable Stars, CDSB/gcvs (2014). http://cdsarc.u-strasbg.fr/viz-bin/Cat?B/gcvs. See also http://www.sai.msu.su/gcvs/gcvs/
Shevchenko, I.I.: Astrophys. J. 799, 8 (2015). doi:10.1088/0004-637X/799/1/8
Stellingwerf, R.F.: Astrophys. J. 224, 953 (1978). doi:10.1086/156444
Tokovinin, A.A.: ASP Conf. Ser. 185, 347 (1999)
Tokovinin, A., Thomas, S., Sterzik, M., Udry, S.: Astron. Astrophys. 450, 681 (2006). doi:10.1051/0004-6361:20054427
Torres, G., Vaz, L.P.R., Sandberg, L., Claud, H.: Astron. J. 136, 2158 (2008). doi:10.1088/0004-6256/136/5/2158
Völschow, M., Schleicher, D.R.G., Perdelwitz, V., Banerjee, R.: Astron. Astrophys. 587, A34 (2016). doi:10.1051/0004-6361/201527333
Zhuchkov, R.Y., Kiyaeva, O.V., Orlov, V.V.: Astron. Rep. 54, 38 (2010). doi:10.1134/S1063772910010051
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Bogomazov, A.I., Kozyreva, V.S., Satovskii, B.L. et al. Light equation in eclipsing binary CV Boo: third body candidate in elliptical orbit. Astrophys Space Sci 361, 390 (2016). https://doi.org/10.1007/s10509-016-2976-9
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DOI: https://doi.org/10.1007/s10509-016-2976-9