Abstract
Numerical simulations of the motions of stars in the gravitational fields of binary black holes with various component mass ratios have been carried out. Two models are considered: (1) the two-body problem with two fixed centers; (2) the general three-body problem. The first model is applicable only over short times Δt ≫ T, where T is the period of the binary system. The second model is applicable at all times except for during close encounters of stars with one of the binary components, r ≤ 0.00002 pc, where r is the distance from the star to the nearer black hole. In very close passages, relativistic corrections must be taken into account. Estimates of the probability of formation of high-velocity stars as a result of such interactions are obtained. It is shown that this mechanism is not suitable for the nucleus of our Galaxy due to the probable absence of a second massive black hole in the central region of the Galaxy.
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Original Russian Text © S.V. Zhuiko, V.V. Orlov, K.S. Shirokova, 2017, published in Astronomicheskii Zhurnal, 2017, Vol. 94, No. 1, pp. 53–58.
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Zhuiko, S.V., Orlov, V.V. & Shirokova, K.S. High-velocity stars as a result of encounters between stars and massive binary black holes in galactic nuclei. Astron. Rep. 61, 47–52 (2017). https://doi.org/10.1134/S1063772916120076
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DOI: https://doi.org/10.1134/S1063772916120076