Hostname: page-component-cd9895bd7-lnqnp Total loading time: 0 Render date: 2024-12-25T16:24:12.008Z Has data issue: false hasContentIssue false
  • English
  • Français

3D Simulations of the ISM pollution by SNII and SNI in dwarf spheroidal galaxies

Published online by Cambridge University Press:  08 November 2005

Andrea Marcolini ,
Fabrizio Brighenti  and
Annibale D'Ercole
Andrea Marcolini
Affiliation:
Dipartimento di Astronomia, Università di Bologna, via Ranzani 1, 40127 Bologna, Italy email: [email protected]
Fabrizio Brighenti
Affiliation:
Dipartimento di Astronomia, Università di Bologna, via Ranzani 1, 40127 Bologna, Italy email: [email protected]
Annibale D'Ercole
Affiliation:
Osservatorio Astronomico di Bologna, via Ranzani 1, 40127 Bologna, Italy
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

We present preliminary results of 3-D hydro simulations of the interstellar medium evolution in dwarf spheroidal galaxies undergoing star formation for the first time. The star formation is assumed to occur in a sequence of instantaneus bursts separated by quiescent periods. Different models are made changing the number and the intensity of the bursts in such a way that the final mass of the formed stars remains the same. We followed the enrichment of the ISM taking into account the contribution of both type Ia and II supernovae. The aim of our models is to find a star formation history compatible with the observed spread of stellar age and metallicity in such galaxies and to reproduce the observed mass-metallicity relation.

Keywords

methods: numerical – galaxies: dwarf – galaxies: ISM – ISM: evolution
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 1 , Colloquium C198: Near-Field Cosmology with Dwarf Elliptical Galaxies , March 2005 , pp. 198 - 201
Copyright
© 2005 International Astronomical Union