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In this paper, we consider a time-periodically forced Kepler problem in anydimensions, with an external force which we only assume to be regular in aneighborhood of the attractive center. We prove that there exist infinitelymany periodic orbits in this system, with possible double collisions with thecenter regularized, which accumulate the attractive center. The result isobtained via a localization argument combined with a result on$C^{1}$-persistence of closed orbits by a local homotopy-streching argument.Consequently, by formulating the circular and elliptic restricted three-bodyproblems of any dimensions as time-periodically forced Kepler problems, weobtain that there exists infinitely many periodic orbits, with possible doublecollisions with the primaries regularized, accumulating to each of theprimaries.

Generalized Periodic Orbits of Time-Periodically Forced Kepler Problem  Accumulating the Center and of Circular and Elliptic Restricted Three-Body  Problems