Astrophysics and Space Science

, Volume 86, Issue 2, pp 505–508 | Cite as

Steady wave model of spiral galaxies and its application in cosmogony

  • R. Louise
Letter to the Editor


The model is based on the assumption that logarithmic spiral arms of most spiral galaxies are due to the totating density wave\(\tilde v(r,{\text{ }}\theta {\text{, }}t)\) obeying the steady wave equation\(\nabla ^2 \tilde v(r,{\text{ }}\theta ) + (q^2 /r^2 )\tilde v(r,{\text{ }}\theta {\text{)}} = {\text{0}}\). It is shown that this equation accounts also for the so-called Titius-Bode's law in the solar system.


Wave Equation Solar System Totating Density Wave Model Density Wave 
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Copyright information

© D. Reidel Publishing Co. 1982

Authors and Affiliations

  • R. Louise
    • 1
  1. 1.Observatoire de MarseilleMarseilleFrance

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