logo observatoire

SÉMINAIRE DU LERMA
OBSERVATOIRE DE PARIS
logo lerma



Vendredi 27 novembre 2009 à 14H


77 avenue Denfert Rochereau, Paris 14



Salle de l'Atelier, Observatoire de Paris





Dark and Luminous Surface Densities in Galaxies: Universality and the Nature of the Dark Matter



Paolo SALUCCI

SISSA/Astrophysics, Trieste



Résumé : The distributions of dark and luminous matter in galaxies are not independent as the present theory of galaxy formation and structure would predict, but they are intimately connected.
Moreover, in the dark matter distribution, unexpected features as a region of constant surface density have been recently established on the basis of a large set of galaxy observations.
The cosmological and physical importance of these results will be discussed.