Astronomy and Astrophysics – Astrophysics
Scientific paper
Mar 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005a%26a...432..713p&link_type=abstract
Astronomy and Astrophysics, Volume 432, Issue 2, March III 2005, pp.713-729
Astronomy and Astrophysics
Astrophysics
9
Celestial Mechanics, Chaos
Scientific paper
We theoretically investigate the existence of families of periodic orbits in the planar N-body ring problem and we give a qualitative picture of the motion of a small particle. This study yields four families of periodic orbits which we also found numerically: two families of periodic orbits around the central body and two families around all the peripherals. These results are valid for different values of N and β. Also we investigate the evolution of simple periodic motions as well as their stability. We found stable and unstable orbits around the central body, around all the peripherals and around one or more peripherals which form rings of stability. Some families present other types of bifurcations, such as bifurcations of families of non-symmetric periodic orbits of the same period and period-doubling bifurcations.
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