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Some families of periodic oscillations in the restricted problem with small mass-ratios of three bodies

Authors:	V V Markellos

Institution:	(1) Dept. of Astronomy, University of Manchester, England

Abstract:	This paper reports on the numerical determination of families of periodic oscillations in the case =0.000 95 of the restricted problem. The families emanating out of the collinear Lagrangian pointsL ₁,L ₂,L ₃ are examined as well as some asymmetric periodic oscillations related to them. An effort is made to complete the global picture of simple-periodic symmetric oscillations in the present case of the problem (the S-J case). This is done by examining the orbits with initial conditions such that the infinitesimal body starts from a position on the ₁-axis (₀₂ = 0) with a negative initial velocity $(\dot \xi _{02}< 0)$ perpendicular to this axis $(\dot \xi _{01} = 0)$ . In a previous article this investigation has been carried out for negative values of ₀₁, where the position of the small primary defines ₁=0. Now we proceed to consider orbits with ₀₁>0. The phase portrait of asymmetric periodic orbits is also examined.

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