The dark matter is mostly an axion BEC

Details The dark matter is mostly an axion BEC The dark matter is mostly an axion BEC

2010-12-07

arxiv.org/abs/1012.1553v1

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

11 pages, invited talk at the IDM2010 International Conference on the Identification of Dark Matter, Montpellier, France, July

Scientific paper

Axions differ from ordinary cold dark matter, such as WIMPs or sterile neutrinos, because they form a Bose-Einstein condensate (BEC). As a result, axions accreting onto a galactic halo fall in with net overall rotation. In contrast, ordinary CDM accretes onto galactic halos with an irrotational velocity field. The inner caustics are different in the two cases. It is shown that if the dark matter is axions, the phase space structure of the halos of isolated disk galaxies, such as the Milky Way, is precisely that of the caustic ring model for which observational support exists. The other dark matter candidates predict a far more chaotic phase space structure for galactic halos.

Affiliated with

Also associated with

No associations

Rating

The dark matter is mostly an axion BEC does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with The dark matter is mostly an axion BEC, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The dark matter is mostly an axion BEC will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-481194