Timing of AR CrB eclipses

Kozyreva, V. S. and Irsmambetova, T. R. and Ibrahimov, M. A. and Krushevska, V. N. and Kuznyetsova, Yu. G. and Khalikova, A. V. and Parmonov, O. U. and Karimov, R. G. and Bogomazov, A. I. and Tutukov, A. V. (2018) Timing of AR CrB eclipses. Information Bulletin on Variable Stars, 63 (6235). ISSN 1587-2440

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Abstract

AR CrB is a short-period low-mass eclipsing binary. We conducted photometric observations of the system in 2013, 2014, 2016, 2017, and obtained times of its light curves minima. The timing of eclipses (our times of minima combined with data from the literature) shows that the orbital period of AR CrB could possess periodical variations that can be explained by the gravitational influence of a third companion in a highly eccentric orbit around the central binary.

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