Analytical potential-density pairs from complex-shifted Kuzmin-Toomre discs

نویسندگان

  • D. Vogt
  • P. S. Letelier
چکیده

The complex-shift method is applied to the Kuzmin-Toomre family of discs to generate a family of non-axisymmetric flat distributions of matter. These are then superposed to construct non-axisymmetric flat rings. We also consider triaxial potential-density pairs obtained from these non-axisymmetric flat systems by means of suitable transformations. The use of the imaginary part of complex-shifted potentialdensity pairs is also discussed.

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تاریخ انتشار 2009