Secular resonant dressed orbital diffusion – II. Application to an isolated self-similar tepid galactic disc

  title={Secular resonant dressed orbital diffusion – II. Application to an isolated self-similar tepid galactic disc},
  author={Jean-Baptiste Fouvry and Christophe Pichon},
  journal={Monthly Notices of the Royal Astronomical Society},
The main orbital signatures of the secular evolution of an isolated self-gravitating stellar Mestel disc are recovered using a dressed Fokker-Planck formalism in angle-action variables. The shot-noise-driven formation of narrow ridges of resonant orbits is recovered in the WKB limit of tightly wound transient spirals, for a tepid Toomre-stable tapered disc. The relative effect of the bulge, the halo, the disc temperature and the spectral properties of the shot noise are investigated in turn… 

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  • J. Sellwood
  • Physics
    Monthly Notices of the Royal Astronomical Society
  • 2020
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