Astronomy and Astrophysics – Astrophysics
Scientific paper
Jan 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990apj...348..127g&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 348, Jan. 1, 1990, p. 127-134. Research supported by the Research Corp. and
Astronomy and Astrophysics
Astrophysics
2
Dynamic Characteristics, Elliptical Galaxies, Many Body Problem, Stellar Orbits, Stellar Rotation, Algorithms, Equations Of Motion, Fourier Series
Scientific paper
An algorithm has devised to calculate two-dimensional quasi-periodic orbits in the plane of rotation of a nonaxisymmetric galactic potential which is slowly rotating. The method used is an extension of that used by Ratcliff, Chang, and Schwarzschild, in which the orbit is specified by its frequencies and the Fourier amplitudes are solved for directly. A sample of orbits is calculated for a range of rotation speeds and the results are compared to previous work by de Zeeuw and Merritt in the same rotating potential. The retrograde loop orbits, at least at moderate energies, form a continuous family with the boxes, while the prograde loops remain distinct and separate.
Guerra David V.
Ratcliff Stephen J.
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