Advertisement

Springer Nature is making Coronavirus research free. View research | View latest news | Sign up for updates

Comments on the paper ‘hydrodynamic and turbulent motions in the galactic disk’

  • 22 Accesses

  • 4 Citations

Abstract

Two comments are prompted by the recent paper of Quiroga (1983). First, it is pointed out that Quiroga's identification of two distinct types of motion (hydrodynamic and turbulent) within the galactic disk supports the suggestion that turbulent motions in the Galaxy are generated by the shearig action of differential galactic rotation. Secondly, as a result of these turbulent motions dominating the systematic hydrodynamics of galactic rotation at scale sizes below 100–300 pc, it appears that some process(es) associated with interstellar turbulence rather than with galactic rotation should play a dominant role in the establishment of the angular momentum of interstellar material.

This is a preview of subscription content, log in to check access.

References

  1. Fleck, R. C.: 1980,Astrophys. J. 242, 1019.

  2. Fleck, R. C.: 1981,Astrophys. J. 246, L151.

  3. Fleck, R. C.: 1982,Astrophys. J. 261, 631.

  4. Fleck, R. C.: 1983,Astrophys. J. 272, L45.

  5. Fleck, R. C.: 1984, in preparation.

  6. Fleck, R. C. and Clark, F. O.: 1981,Astrophys. J. 245, 898.

  7. Horedt, G. P.: 1982,Astron. Astrophys. 106, 29.

  8. Huang, S.-S.: 1969,Vistas Astron. 2, 217.

  9. Huang, S.-S. and Struve, O.: 1954,Ann. Astrophys. 17, 85.

  10. Kleiner, S. and Dickman, R. L.: 1983, private communication.

  11. Kuiper, G. P.: 1955,Publ. Astron. Soc. Pacific 67, 387.

  12. McCrea, W. H.: 1960,Proc. Roy. Soc. London a 256, 245.

  13. McCrea, W. H.: 1978, in S. F. Dermott (ed.)The Origin of the Solar System, Wiley, New York, p. 75.

  14. Quiroga, R. J.: 1983,Astrophys. Space Sci. 93, 37.

  15. Silk, J. and Norman, C.: 1983,Astrophys. J. 272, L49.

  16. Woolfson, M. M.: 1979,Phil. Trans. Roy. Soc. London 291, 219.

Download references

Author information

Rights and permissions

Reprints and Permissions

About this article

Cite this article

Fleck, R.C. Comments on the paper ‘hydrodynamic and turbulent motions in the galactic disk’. Astrophys Space Sci 100, 417–419 (1984). https://doi.org/10.1007/BF00651617

Download citation

Keywords

  • Angular Momentum
  • Dominant Role
  • Distinct Type
  • Scale Size
  • Turbulent Motion