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JOURNALS // Vestnik of Saint Petersburg University. Mathematics. Mechanics. Astronomy // Archive

Vestnik of Saint Petersburg University. Mathematics. Mechanics. Astronomy, 2021 Volume 8, Issue 1, Pages 179–184 (Mi vspua142)

ASTRONOMY

Is jacobi theorem valid in the singly averaged restricted circular Three-Body-Problem?

K. V. Kholshevnikovab

a St. Petersburg State University, 7-9, Universitetskaya nab., St. Petersburg, 199034, Russian Federation
b Institute of Applied Astronomy RAS, 10, nab. Kutuzova, St. Petersburg, 191187, Russian Federation

Abstract: C. Jacobi found that in the General N-Body-Problem (including $N = 3$) for the Lagrangian stability of any solution necessary is the negativity of the total energy of the system. For the restricted three-body-problem, this statement is trivial, since a zero-mass body introduces zero contribution to the energy of the system. If we consider only the equations describing the movement of the zero mass point, then the energy integral disappears. However, if we average the equations over the longitudes of the main bodies, the energy integral appears again. Is the Jacobi theorem valid in this case? It turned out not. For arbutrary large values of total energy, there exist bounded periodic orbits. At the same time the negative energy is sufficient for the boundedness of an orbit in the configuration space.

Keywords: restricted circular Three-Body-Problem, Jacobi theorem on stability, averaging.

UDC: 521.14

MSC: 70F07

Received: 09.05.2020
Revised: 28.08.2020
Accepted: 17.09.2020

DOI: 10.21638/spbu01.2021.116


 English version:
Vestnik St. Petersburg University, Mathematics, 2021, 8:3, 106–110


© Steklov Math. Inst. of RAS, 2024