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On bridges B(pL, qS) around triangular libration points
Authors:X Y Hou  L Liu
Institution:(1) Astronomy Department, Nanjing University, Nanjing, 210093, China;(2) Institute of Space Environment and Astronautics, Nanjing University, Nanjing, 210093, China
Abstract:When μ is smaller than Routh’s critical value μ 1 = 0.03852 . . . , two planar Lyapunov families around triangular libration points exist, with the names of long and short period families. There are periodic families which we call bridges connecting these two Lyapunov families. With μ increasing from 0 to 1, how these bridges evolve was studied. The interval (0,1) was divided into six subintervals (0, μ 5), (μ 5μ 4), (μ 4μ 3), (μ 3μ 2), (μ 2μ 1), (μ 1, 1), and in each subinterval the families B(pL, qS) were studied, along with the families B(qS, qS′). Especially in the interval (μ 2μ 1), the conclusion that the bridges B(qS, qS′) do not exist was obtained. Connections between the short period family and the bridges B(kS, (k + 1)S) were also studied. With these studies, the structure of the web of periodic families around triangular libration points was enriched.
Keywords:Restricted three-body problem  Triangular libration point  Periodic orbit  Bridges connecting Lyapunov families
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