Astron. Astrophys. 335, 847-854 (1998)

Metallicity gradients and the matter distribution in elliptical galaxies

A. Martinelli <sup>1, 2

1</sup> Istituto Astronomico, Via Lancisi 29, Roma, Italy (martinelli@roma2.infn.it)
² Department of Physics and Astronomy, University of Wales Cardiff, P.O. Box 913, Cardiff, Wales CF2 3YB, UK (martinelli@astro.cf.ac.uk)

Received 10 November 1997 / Accepted 19 February 1998

Abstract

In this work I discuss on the basis of the instantaneous recycling approximation the possibility of determining a relation between matter distribution (luminous and dark) in elliptical galaxies and the metallicity distribution.

Two different contexts are considered depending on the behaviour of the gas velocity.

Key words: galaxies: abundances galaxies: elliptical and lenticular, cD galaxies: evolution galaxies: structure

SIMBAD Objects

Contents

• 1. Introduction
• 2. Basic equations
  • 2.1. F-models
  • 2.2. GW-models
• 3. Relation between matter and metallicity distribution
  • 3.1. F-models
  • 3.2. GW-models
• 4. Discussion
  • 4.1. F-models
  • 4.2. GW-models
• 5. Conclusions
• Acknowledgements
• References

© European Southern Observatory (ESO) 1998

Online publication: June 26, 1998
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