期刊
PHYSICS LETTERS B
卷 695, 期 1-4, 页码 22-25出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.physletb.2010.11.027
关键词
Dark matter; Axions; Bose-Einstein condensation
资金
- U.S. Department of Energy [DE-FG02-97ER41029]
Dark matter axions form a rethermalizing Bose-Einstein condensate. This provides an opportunity to distinguish axions from other forms of dark matter on observational grounds. I 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 had been found earlier. The other dark matter candidates predict a different phase space structure for galactic halos. (C) 2010 Elsevier B.V. All rights reserved.
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