Résumé / Abstract Seminaire_IAP
« Galaxy formation, dark matter substructure, and reionization »

Piero Madau

Revealing the nature of dark matter is fundamental to cosmology and particle physics. It is a clear, unique prediction of cold dark matter theories that galaxies are built hierarchically and are embedded in massive, extended halos teeming with self-bound substructure or "subhalos". I will present results from "Via Lactea", the highest resolution simulation to date of Galactic cold dark matter substructure. The wealth of substructure predicted by this simulation has implications for models of reionization, stellar streams, disk heating, gravitational lensing, and the Local Group dwarf galaxy population (the "missing satellite problem").
vendredi 7 septembre 2007 - 11:00
Salle des séminaires Évry Schatzman, Institut d'Astrophysique de Paris
Page web du séminaire / Seminar's webpage