An argument that the dark matter is axions
Pierre Sikivie
University of Florida
An argument will be presented that the dark matter is axions, at least in
part. It has three steps. First, axions behave differently from the other
forms of cold dark matter because they form a rethermalizing Bose-Einstein
condensate (BEC). Second, there is a tool to distinguish axion BEC from
the other dark matter candidates on the basis of observation, namely the
study of the inner caustics of galactic halos. Third, the observational
evidence for caustic rings of dark matter is consistent in every aspect
with axion BEC, but not with the other proposed forms of dark matter.
Date: | Mercredi, le 3 octobre 2012 |
Heure: | 14:30 |
Lieu: | Université McGill |
| Ernest Rutherford Physics Building, R.E. Bell Conference Room (room 103) |
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