Astrophysics and Space Science

, Volume 57, Issue 2, pp 511–515 | Cite as

The interaction of the spiral density wave and the Sun's galactic orbit

  • K. A. Innanen
  • A. T. Patrick
  • W. W. Duley
Letter to the Editor


The galactocentric radial motion of the Sun introduces another periodicity to the encounters between the Sun and the spiral density wave. We describe a model simulation of the effect and present the associated periods.


Model Simulation Density Wave Radial Motion Spiral Density Wave Galactic Orbit 
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Copyright information

© D. Reidel Publishing Company 1978

Authors and Affiliations

  • K. A. Innanen
    • 1
  • A. T. Patrick
    • 1
  • W. W. Duley
    • 1
  1. 1.Physics Dept and CRESSYork UniversityTorontoCanada

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