Statistics – Computation
Scientific paper
Feb 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987mnras.224..863j&link_type=abstract
Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 224, Feb. 15, 1987, p. 863-884.
Statistics
Computation
1
Astronomical Models, Astrophysics, Disk Galaxies, Gas Flow, Wave Propagation, Attitude (Inclination), Computational Grids, Density Wave Model, Flow Geometry, Propagation Modes, Wave Fronts
Scientific paper
A previous three-dimensional quasi-particle code (Johns and Nelson, 1985) is used to numerically study the evolution of vertical tilt and corrugation-wave modes in axisymmetric and nonaxisymmetric galactic potentials. In all cases, a significant wind-up in the outer regions over times of order 1 Gyr is found, though there is also some evidence for slow wind-up in the center for retrograde waves. The wind-up behavior is significantly affected by the occurrence of a nonaxisymmetric perturbation to the potential in the form of a spiral density wave, and evidence is found of a tendency for the corrugation wave to change from retrograde to prograde in the presence of a trailing spiral-density-wave driving force.
Johns Timothy C.
Nelson Alistair H.
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