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- W227448503 abstract "We study the dynamics of a wide multiple system a Centauri + Proxima. The total energy of the system was estimated according to the available observational data on masses, coordinates, proper motions, and radial velocities of its components. To account for the effect of the observational data errors on the result, we have implemented the Monte Carlo method. From N = 10 6 statistical tests we show that with the probability of about 90% the motion is hyperbolic, i.e., a CenAB and Proxima will after a while diverge from each other by a considerable distance. We also perform numerical modeling of dynamic evolution of the wide pair a Cen AB + Proxima in the regular field of the Galaxy. The trajectory of relative motion is constructed. The components diverge from each other by a distance of 20 pc over the time scale of about 200 Myr. The critical parameter for determining the dynamic status of the system is the radial velocity of the C component (Proxima), known with an error of 200 m s -1. For a reliable determination of the nature of motions in the system, we have to decrease the radial velocity error by at least an order of magnitude." @default.
- W227448503 created "2016-06-24" @default.
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- W227448503 date "2014-01-01" @default.
- W227448503 modified "2023-09-28" @default.
- W227448503 title "Динамический статус широкой кратной системы а Центавра + Проксима" @default.
- W227448503 hasPublicationYear "2014" @default.
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