Abstract
In this study, we have performed simultaneous solutions of light and radial velocity curves of two eclipsing binary systems, V566 Oph and V972 Her. We observed both systems spectroscopically with a very recently installed spectrograph on the 40 cm telescope, T40, located in Ankara University Kreiken Observatory (AUKR), for the first time. We made use of the photometric data from the Hipparcos satellite for V972 Her, while we obtained the photometric observations of V566 Oph by using the 35 cm telescope, T35, located also in our observatory campus. We derived the absolute parameters for both systems and discussed their evolutionary states. In addition to the simultaneous analysis, we have also analyzed the change in mid-eclipse times for V566 Oph, and found cyclic variations, for which we have discussed light-time effect and magnetic activity as their potential origin, superimposed on a secular change due to a mass transfer between the components of the binary.
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Abt, H.A.: Astrophys. J. Suppl. Ser. 180, 117 (2009). https://doi.org/10.1088/0067-0049/180/1/117
Alton, K.B.: Open Eur. J. Var. Stars 39, 1 (2006)
Applegate, J.H.: Astrophys. J. 385, 621 (1992). https://doi.org/10.1086/170967
Bahar, E., Şenavcı, H.V., Baştürk, Ö.: In: Rucinski, S.M., Torres, G., Zejda, M. (eds.) Living Together: Planets, Host Stars and Binaries. Astronomical Society of the Pacific Conference Series, vol. 496, p. 288 (2015)
Barden, S.C.: Astrophys. J. 295, 162 (1985). https://doi.org/10.1086/163361
Bookmyer, B.B.: Publ. Astron. Soc. Pac. 88, 473 (1976). https://doi.org/10.1086/129972
Borkovits, T., Elkhateeb, M.M., Csizmadia, S., Nuspl, J., Bíró, I.B., Hegedüs, T., Csorvási, R.: Astron. Astrophys. 441, 1087 (2005). astro-ph/0507228. https://doi.org/10.1051/0004-6361:20052805
Bradstreet, D.H., Guinan, E.F.: In: Shafter, A.W. (ed.) Interacting Binary Stars. Astronomical Society of the Pacific Conference Series, vol. 56, p. 228 (1994)
Collins, K.A., Kielkopf, J.F., Stassun, K.G., Hessman, F.V.: Astron. J. 153, 77 (2017). 1601.02622. https://doi.org/10.3847/1538-3881/153/2/77
Cruddace, R.G., Dupree, A.K.: Bull. Am. Astron. Soc. 14, 945 (1982)
D’Angelo, C., van Kerkwijk, M.H., Rucinski, S.M.: Astron. J. 132, 650 (2006). astro-ph/0602139. https://doi.org/10.1086/505265
Degirmenci, O.L.: Information Bulletin on Variable Stars 5726 (2006)
Eggleton, P.P.: J. Astron. Space Sci. 29, 145 (2012). https://doi.org/10.5140/JASS.2012.29.2.145
ESA: The Hipparcos and Tycho Catalogues. Astrometric and Photometric Star Catalogues Derived from the Esa Hipparcos Space Astrometry Mission. ESA Special Publication, vol. 1200 (1997)
Gazeas, K.D., Niarchos, P.G.: Mon. Not. R. Astron. Soc. 370, 29 (2006). astro-ph/0606715. https://doi.org/10.1111/j.1745-3933.2006.00182.x
Girardi, L., Bressan, A., Bertelli, G., Chiosi, C.: Astron. Astrophys. Suppl. Ser. 141, 371 (2000). astro-ph/9910164. https://doi.org/10.1051/aas:2000126
Guinan, E.F., Bradstreet, D.H.: Kinematic clues to the origin and evolution of low mass contact binaries. In: Dupree, A.K., Lago, M.T.V.T. (eds.) Formation and Evolution of Low Mass Stars. NATO Advanced Science Institutes (ASI) Series C, vol. 241, p. 345 (1988)
Han, Q., Li, L., Kong, X., Gong, X., Zhao, R.: New Astron. 31, 26 (2014). https://doi.org/10.1016/j.newast.2014.02.003
Harlan, E.A.: Astron. J. 79, 682 (1974). https://doi.org/10.1086/111597
Heard, J.F.: J. R. Astron. Soc. Can. 59, 258 (1965)
Hilditch, R.W., King, D.J., McFarlane, T.M.: Mon. Not. R. Astron. Soc. 231, 341 (1988). https://doi.org/10.1093/mnras/231.2.341
Hill, G., Hilditch, R.W., Younger, F., Fisher, W.A.: Mem. R. Astron. Soc. 79, 131 (1975)
Hill, G., Fisher, W.A., Holmgren, D.: Astron. Astrophys. 218, 152 (1989)
Hoffmeister, C.: Astron. Nachr. 255, 401 (1935). https://doi.org/10.1002/asna.19352552202
Hutchings, J.B., Hill, G.: Astrophys. J. 179, 539 (1973). https://doi.org/10.1086/151893
Irwin, J.B.: Astron. J. 64, 149 (1959). https://doi.org/10.1086/107913
Kalimeris, A., Rovithis-Livaniou, H., Rovithis, P.: Astron. Astrophys. 282, 775 (1994)
Kaluzny, J.: Acta Astron. 36, 105 (1986)
Kepler, S.O., Kleinman, S.J., Nitta, A., Koester, D., Castanheira, B.G., Giovannini, O., Costa, A.F.M., Althaus, L.: Mon. Not. R. Astron. Soc. 375, 1315 (2007). astro-ph/0612277. https://doi.org/10.1111/j.1365-2966.2006.11388.x
Klotz, A., Delmas, R., Marchais, D., Pujol, M., Jasinski, C.: The AudeLA software. In: Second Workshop on Robotic Autonomous Observatories. Astronomical Society of India Conference Series, vol. 7, p. 15 (2012)
Kozai, Y.: Astron. J. 67, 591 (1962). https://doi.org/10.1086/108790
Kukarkin, B.V., Parenago, P.P.: English Version of Introduction and Remarks from the General Catalogue of Variable Stars. International Astronomical Union, Paris (1949)
Lafta, S.J., Grainger, J.F.: Astrophys. Space Sci. 114, 23 (1985). https://doi.org/10.1007/BF02463865
Li, L., Zhang, F., Han, Z., Jiang, D., Jiang, T.: Mon. Not. R. Astron. Soc. 387, 97 (2008). 0805.4040. https://doi.org/10.1111/j.1365-2966.2008.12736.x
Liakos, A., Varrias, S., Niarchos, P.: In: Tsinganos, K., Hatzidimitriou, D., Matsakos, T. (eds.) 9th International Conference of the Hellenic Astronomical Society. Astronomical Society of the Pacific Conference Series, vol. 424, p. 204 (2010). 0912.3639
Maceroni, C., Milano, L., Russo, G.: Mon. Not. R. Astron. Soc. 217, 843 (1985). https://doi.org/10.1093/mnras/217.4.843
Maddox, W.C., Bookmyer, B.B.: Publ. Astron. Soc. Pac. 93, 230 (1981). https://doi.org/10.1086/130810
McDonald, I., Zijlstra, A.A., Boyer, M.L.: Mon. Not. R. Astron. Soc. 427, 343 (2012). 1208.2037. https://doi.org/10.1111/j.1365-2966.2012.21873.x
McLean, B.J.: Mon. Not. R. Astron. Soc. 204, 817 (1983). https://doi.org/10.1093/mnras/204.3.817
Nelson, R.H., Terrell, D., Gross, J.: Inf. Bull. Var. Stars 5715 (2006)
Newville, M., Stensitzki, T., Allen, D.B., Ingargiola, A.: 2014 Lmfit: Non-linear Least-square Minimization and Curve-fitting for Python. https://doi.org/10.5281/zenodo.11813
Niarchos, P.G., Rovithis-Livaniou, H., Rovithis, P.: Astrophys. Space Sci. 203, 197 (1993). https://doi.org/10.1007/BF00658988
Panchatsaram, T., Abhyankar, K.D.: Bull. Astron. Soc. India 10, 111 (1982)
Perry, C.L.: Astron. J. 74, 705 (1969). https://doi.org/10.1086/110846
Pribulla, T., Rucinski, S.M., Lu, W., Mochnacki, S.W., Conidis, G., Blake, R.M., DeBond, H., Thomson, J.R., Pych, W., Ogłoza, W., Siwak, M.: Astron. J. 132, 769 (2006). astro-ph/0605357. https://doi.org/10.1086/505536
Prsa, A., Matijevic, G., Latkovic, O., Vilardell, F., Wils, P.: PHOEBE: PHysics Of Eclipsing BinariEs. Astrophysics Source Code Library (2011). ascl.net/1106.002
Pustylnik, I.B., Niarchos, P.G.: Astron. Astrophys. 361, 982 (2000)
Qian, S.: Mon. Not. R. Astron. Soc. 328, 914 (2001). https://doi.org/10.1046/j.1365-8711.2001.04921.x
Qian, S.-B., Liu, L., Soonthornthum, B., Zhu, L.-Y., He, J.-J.: Astron. J. 131, 3028 (2006). https://doi.org/10.1086/503561
Qian, S.-B., Yuan, J.-Z., Soonthornthum, B., Zhu, L.-Y., He, J.-J., Yang, Y.-G.: Astrophys. J. 671, 811 (2007a). https://doi.org/10.1086/522421
Qian, S.-B., Xiang, F.-Y., Zhu, L.-Y., Dai, Z.-B., He, J.-J., Yuan, J.-Z.: Astron. J. 133, 357 (2007b). https://doi.org/10.1086/509499
Qian, S.-B., Yuan, J.-Z., Xiang, F.-Y., Soonthornthum, B., Zhu, L.-Y., He, J.-J.: Astron. J. 134, 1769 (2007c). https://doi.org/10.1086/521927
Qian, S.-B., He, J.-J., Xiang, F.-Y.: Publ. Astron. Soc. Jpn. 60, 77 (2008). https://doi.org/10.1093/pasj/60.1.77
Qian, S.-B., Liu, L., Zhu, L.-Y.: Proc. Astron. Soc. Aust. 26, 7 (2009). https://doi.org/10.1071/AS08009
Qian, S.-B., Zhang, J., Wang, J.-J., Zhu, L.-Y., Liu, L., Zhao, E.G., Li, L.-J., He, J.-J.: Astrophys. J. Suppl. Ser. 207, 22 (2013). https://doi.org/10.1088/0067-0049/207/2/22
Qian, S.-B., Zhou, X., Zola, S., Zhu, L.-Y., Zhao, E.-G., Liao, W.-P., Leung, K.-C.: Astron. J. 148, 79 (2014). https://doi.org/10.1088/0004-6256/148/5/79
Qian, S.-B., He, J.-J., Zhang, J., Zhu, L.-Y., Shi, X.-D., Zhao, E.-G., Zhou, X.: Res. Astron. Astrophys. 17, 087 (2017). 1705.03996. https://doi.org/10.1088/1674-4527/17/8/87
Rucinski, S.M.: Acta Astron. 23, 79 (1973)
Rucinski, S.M.: Mon. Not. R. Astron. Soc. 215, 615 (1985). https://doi.org/10.1093/mnras/215.4.615
Rucinski, S.M.: Publ. Astron. Soc. Pac. 105, 1433 (1993). https://doi.org/10.1086/133326
Rucinski, S.M.: In: Maeder, A., Eenens, P. (eds.) Stellar Rotation. IAU Symposium, vol. 215, p. 17 (2004)
Rucinski, S.M., Vilhu, O.: Mon. Not. R. Astron. Soc. 202, 1221 (1983). https://doi.org/10.1093/mnras/202.4.1221
Rucinski, S.M., Lu, W., Capobianco, C.C., Mochnacki, S.W., Blake, R.M., Thomson, J.R., Ogłoza, W., Stachowski, G.: Astron. J. 124, 1738 (2002). astro-ph/0201213. https://doi.org/10.1086/342341
Rucinski, S.M., Pribulla, T., van Kerkwijk, M.H.: Astron. J. 134, 2353 (2007). astro-ph/0703693. https://doi.org/10.1086/523353
Seeds, M.A., Dawson, D.W.: Inf. Bull. Var. Stars 2836 (1985)
Selam, S.O.: Astron. Astrophys. 416, 1097 (2004). https://doi.org/10.1051/0004-6361:20034578
The PyA Group: PyAstronomy (2011)
Tokovinin, A.: Astron. J. 147, 86 (2014). 1401.6825. https://doi.org/10.1088/0004-6256/147/4/86
Twigg, L.W.: Mon. Not. R. Astron. Soc. 189, 907 (1979). https://doi.org/10.1093/mnras/189.4.907
Tylenda, R., Hajduk, M., Kamiński, T., Udalski, A., Soszyński, I., Szymański, M.K., Kubiak, M., Pietrzyński, G., Poleski, R., Wyrzykowski, Ł., Ulaczyk, K.: Astron. Astrophys. 528, 114 (2011). 1012.0163. https://doi.org/10.1051/0004-6361/201016221
van Hamme, W.: Astron. Astrophys. 105, 389 (1982)
van Hamme, W., Wilson, R.E.: Astron. Astrophys. 152, 25 (1985)
Yıldız, M.: Mon. Not. R. Astron. Soc. 437, 185 (2014). 1310.5526. https://doi.org/10.1093/mnras/stt1874
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The authors acknowledge the support by the research fund of Ankara University (BAP) through the project 15A0759002.
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Selam, S.O., Esmer, E.M., Şenavcı, H.V. et al. A simultaneous spectroscopic and photometric study of two eclipsing binaries: V566 Oph and V972 Her. Astrophys Space Sci 363, 34 (2018). https://doi.org/10.1007/s10509-018-3252-y
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DOI: https://doi.org/10.1007/s10509-018-3252-y