Chemical Enrichment of the Halo by Dust Expulsion

  • A. Ferrara
Part of the NATO ASI Series book series (ASIC, volume 323)


The dynamical behaviour of dust grains subjected to light and matter distribution of spiral galaxies is analyzed in a hot galactic corona, including gas drag and sputtering. Grains can travel large radial and vertical distances from their original position removing material from the inner parts of the disk and sending it to the outskirts of the disk. Some heavy elements can be injected in the gas phase during the evolution in the galactic halos.


Heavy Element Radiation Pressure Spiral Galaxy Galactic Halo Galactocentric Distance 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. Athanassoula E., Bosnia A. and Papaioannu S. 1987, Astron. Astrophys., 179, 23ADSGoogle Scholar
  2. Barsella B., Ferrini F., Greenberg J.M., and Aiello S. 1989a, Astron. Astrophys., 209, 349ADSGoogle Scholar
  3. Barsella B., Franco J., Ferrini F., and Ferrara A. 1989b, in preparationGoogle Scholar
  4. Draine B.T., and Lee H.M. 1984, Ap. J., 285, 89ADSCrossRefGoogle Scholar
  5. Draine B.T., and Salpeter E.E. 1979, Ap. J., 231, 77ADSCrossRefGoogle Scholar
  6. Ferrara A., Ferrini F., Barsellas B., and Aiello S. 1989, submitted to Astron. Astrophys.Google Scholar
  7. Franco J. 1989, preprintGoogle Scholar
  8. Kent S.M. 1987, Astron. J., 93, 816ADSCrossRefGoogle Scholar
  9. Pettini M., West K. 1982, Ap. J., 260, 561ADSCrossRefGoogle Scholar
  10. Savage B., 1986, in “New Insights in Astrophysics”, Proc. Joint NASA/ESA/SERC ESA-SP 263 Google Scholar

Copyright information

© Kluwer Academic Publishers 1991

Authors and Affiliations

  • A. Ferrara
    • 1
  1. 1.Dip. di AstronomiaUniversit’ di FirenzeFirenzeItaly

Personalised recommendations