Chemodynamics of the Galaxies: From Cuspy to Dark Matter Density Profiles and Metallicity Gradients

Details Chemodynamics of the Galaxies: From Cuspy to Dark Matter Density Profiles and Metallicity Gradients Chemodynamics of the Galaxies: From Cuspy to Dark Matter Density Profiles and Metallicity Gradients

Jul 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011eas....48..461p&link_type=abstract

EAS Publications Series, Volume 48, 2011, pp.461-462

Computer Science

Scientific paper

We follow the dynamical and chemical evolution of isolated systems tuned in their properties on selfgravitating spherical three component (gas+stars+dark matter) dwarf spheroidal galaxies (dSph). The system starts as a strongly dark matter dominated cuspy density profile. It is shown that after few Gyr of evolution the star formation processes are naturally able to reshape the cuspy dark matter profile into a flatter one. The same family of models is then evolved by orbiting in a Milky Way external potential in order to investigate the history of the Carina dwarf galaxy. Structural parameters and the star formation history of Carina are self-consistently determined in good agreement with the observations.

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