Simple pairs potential-density for flat rings - AstrophysicsReport as inadecuate

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Abstract: Pairs potential-density in terms of elementary functions that represents flatrings structures are presented. We study structures representing one or severalconcentric flat rings. Also disks surrounded by concentric flat rings areexhibited. The stability of concentrically circular orbits of particles movingon a flat ring structure is analyzed for radial perturbations.

Author: Patricio S. Letelier


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