Jul 26 – 30, 2010
Montpellier 2 University
Europe/Paris timezone

Bose-Einstein Condensation of Dark Matter Axions

Jul 28, 2010, 10:50 AM
25m
Amphithéatre Dumontet (Montpellier 2 University)

Amphithéatre Dumontet

Montpellier 2 University

Place Eugene Bataillon, 34095 Montpellier Cedex 5 FRANCE
Talk Dark Matter Candidates Plenary session : Dark Matter Candidates 1

Speaker

Dr Pierre Sikivie (University of Florida)

Description

It was found recently that dark matter axions thermalize and form a Bose-Einstein condensate (BEC). This provides an opportunity to distinguish axions from other forms of dark matter on observational grounds. I'll show that if the dark matter is axions, tidal torque theory predicts a specific structure for the phase space distribution of the halos of isolated disk galaxies, such as the Milky Way. This phase space structure is precisely that of the caustic ring model, for which observational support has been found earlier. The other dark matter candidates predict a different phase space structure for galactic halos. These findings imply that the dark matter is axions.

Primary author

Dr Pierre Sikivie (University of Florida)

Presentation materials