Institute of Applied Astronomy of the Russian Academy of Sciences
UDK 53 Физика
UDK 520 Инструменты, приборы и методы астрономических наблюдений, измерений и анализа
UDK 521 Теоретическая астрономия. Небесная механика. Фундаментальная астрономия. Теория динамической и позиционной астрономии
UDK 523 Солнечная система
UDK 524 Звезды и звездные системы. Вселенная Солнце и Солнечная система
UDK 52-1 Метод изучения
UDK 52-6 Излучение и связанные с ним процессы
GRNTI 41.00 АСТРОНОМИЯ
GRNTI 29.35 Радиофизика. Физические основы электроники
GRNTI 29.31 Оптика
GRNTI 29.33 Лазерная физика
GRNTI 29.27 Физика плазмы
GRNTI 29.05 Физика элементарных частиц. Теория полей. Физика высоких энергий
OKSO 03.06.01 Физика и астрономия
OKSO 03.05.01 Астрономия
OKSO 03.04.03 Радиофизика
BBK 2 ЕСТЕСТВЕННЫЕ НАУКИ
BBK 223 Физика
TBK 614 Астрономия
TBK 6135 Оптика
BISAC SCI004000 Astronomy
BISAC SCI005000 Physics / Astrophysics
We explore the immediate and long-term consequences of close passages of interstellar planet-mass and substellar-mass objects for the Solar system dynamics. Two approach orbits of such objects are considered, namely, the hyperbolic orbits of two real interstellar objects, 1I/'Oumuamua and 2I/Borisov. For each orbit, a series of massive numerical experiments is performed, in which the mass of the interstellar object is varied in small steps over a broad range. It is shown that even if the interloper does not experience any close encounter with a planet of the Solar system, and has a mass typical for a free-floating planet, a disruption of the Solar system may occur on time scales of several million years.
planets and satellites: dynamical evolution and stability; ISM: individual objects: 1I/'Oumuamua, 2I/Borisov
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8. Shevchenko I.I., 2010, Physical Review E, 81, 6, id. 066216
