Nonlinear density wave theory for the spiral structure of galaxies

Details Nonlinear density wave theory for the spiral structure of galaxies Nonlinear density wave theory for the spiral structure of galaxies

May 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000phrve..61.5710k&link_type=abstract

Physical Review E (Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics), Volume 61, Issue 5, May 2000, pp

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Spiral Galaxies, Nonlinear Phenomena: Waves, Wave Propagation, And Other Interactions

Scientific paper

The theory of nonlinear waves for plasmas has been applied to the analysis of the density wave theory of galaxies which are many-body systems of gravity. A nonlinear Schrödinger equation has been derived by applying the reductive perturbation method on the fluid equations that describe the behavior of infinitesimally thin disk galaxies. Their spiral arms are characterized by a soliton and explained as a pattern of a propagating nonlinear density wave.

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