Title: Bose-Einstein Condensation of Dark Matter Axions

Abstract: It has recently been found that cold dark matter axions thermalize
and form a Bose-Einstein condensate.  As a result, it may be possible
to distinguish axion dark matter from other dark matter candidates,
such as weakly interacting massive particles, on observational
grounds.  Bose-Einstein condensation of dark matter axions provides
a mechanism for the production of net overall rotation in dark matter
halos, and for the alignment of cosmic microwave anisotropy multipoles.