25 June 2007 to 10 August 2007
CERN PH-TH
Europe/Zurich timezone

The observed properties of dark matter on small astrophysical scales, and the number of small satellites

19 Jul 2007, 11:30
40m
TH AMPHITHEATRE (CERN PH-TH)

TH AMPHITHEATRE

CERN PH-TH

Speaker

Gerry Gilmore

Description

New dynamical studies and discovery searches for the smallest dark matter dominated galaxies will be presented. Dark matter in dSph galaxies has a mean volume mass density within the stellar distribution which always has a very low value of about 5GeV/c^2 cm^-3. The mass profiles appear cored, not cusped as predicted by Cold DM models. Galaxies are embedded in dark matter halos with these properties; small systems containing dark matter are not observed.

Presentation Materials