Read full paper at： http://www.scirp.org/journal/PaperInformation.aspx?PaperID=52771#.VKNXs8nQrzE Author(s) Aishetu Umar * , Jagadish Singh Affiliation(s) Department of Mathematics, Faculty of Science, Ahmadu Bello University, Zaria, Nigeria . ABSTRACT In the framework of the elliptic restricted three-body problem, using a semi-analytic approach, we investigate the effects of oblateness, radiation and eccentricity of both primaries on the periodic orbits around the triangular Lagrangian points of oblate and luminous binary systems. The frequencies of the long and short orbits of the periodic motion are affected by the oblateness and radiation of both primaries, so are their eccentricities, semi-...
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