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Galactic Winds in Ellipticals: Consequences for Galactic and Intergalactic Enrichment

  • F. Matteucci
  • A. Tornambè
  • P. Vettolani
Conference paper
Part of the Astrophysics and Space Science Library book series (ASSL, volume 141)

Abstract

Models of chemical evolution of elliptical galaxies, where galactic winds powered by SN explosions (of type I and II), as well as detailed nucleosynthesis prescriptions for single elements, are taken into account, predict the following results:
  1. i)

    There are different mass-metallicity relations for different heavy elements (O, Mg, Si and Fe), the one for iron being the steepest one.

     
  2. ii)

    In spite of the fact that star formation stops at early epochs (< 1 Gyr), explosions of SNe of type I at the present time are predicted, in agreement with observations. Type I SN rates higher by a factor of ~ 20 with respect to the current ones are predicted for ellipticals at high redshift (≥ 3).

     
  3. iii)

    The contribution to the enrichment of Fe and Si of the intergalactic medium from ellipticals is computed. Good agreement is obtained with the observed abundances from X-rays, and it is claimed that the majority of the gas in clusters should be of primordial origin.

     

Keywords

Globular Cluster Galaxy Cluster High Redshift Elliptical Galaxy Solar Neighbourhood 
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.

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Copyright information

© Kluwer Academic Publishers 1988

Authors and Affiliations

  • F. Matteucci
    • 1
  • A. Tornambè
    • 2
  • P. Vettolani
    • 3
  1. 1.European Southern ObservatoryGarching bei MünchenFederal Republic of Germany
  2. 2.Istituto di Astrofisica SpazialeFrascatiItaly
  3. 3.Istituto di RadioastronomiaBolognaItaly

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