Galactic disks and their evolution

  title={Galactic disks and their evolution},
  author={Anatolii Vladimirovich Zasov and O. K. Sil'chenko},
Rotating stellar-gas disks are the main structural elements of the majority of the observed galaxies. They contain mostly baryonic matter: stars and the diffuse interstellar medium (in the latter, cold gas dominates). Disks have a large angular momentum and rotate such that the local angular velocity decreases along the radius. The maximum rotational velocity of the disk depends on the total mass (luminosity) of the galaxy and is usually 100− 300 km/s, which corresponds to the orbital period… Expand
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Zasov A V, Khoperskov A V, Saburova A S, in preparation
  • Zasov A V et al. Pis’ma Astron. Zh
  • 2002