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Paper detail

Two-Component Axionic Dark Matter Halos

We consider a two-component dark matter halo (DMH) of a galaxy containing ultra-light axions (ULA) of different mass. The DMH is described as a Bose-Einstein condensate (BEC) in its ground state. In the mean-field (MF) limit we have derived the integro-differential equations for the spherically symmetrical wave functions of the two DMH components. We studied numerically the radial distribution of the mass density of ULA and constructed the parameters which could be used to distinguish between the two- and one-component DMH. We also discuss an interesting connection between the BEC MF ground state of a one-component DMH and Hawking temperature and entropy of a corresponding Black Hole, and Unruh temperature.

preprint2020arXivOpen access
Gennady P. BermanVyacheslav N. GorshkovVladimir I. TsifrinovichMarco MerkliVladimir V. Tereshchuk
cond-mat.otherhep-phastro-ph.GAgr-qc
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Gennady P. BermanVyacheslav N. GorshkovVladimir I. TsifrinovichMarco MerkliVladimir V. Tereshchuk

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