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Galactic cold dark matter as a Bose-Einstein condensate of WISPs · Around

2012

Galactic cold dark matter as a Bose-Einstein condensate of WISPs

Pires, M. O. C., de Souza, J. C. C.

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We propose here the dark matter content of galaxies as a cold bosonic fluid composed of Weakly Interacting Slim Particles (WISPs), represented by spin-0 axion-like particles and spin-1 hidden bosons, thermalized in the Bose-Einstein condensation state and bounded by their self-gravitational potential.

We analyze two zero-momentum configurations: the polar phases in which spin alignment of two neighbouring particles is anti-parallel and the ferromagnetic phases in which every particle spin is aligned in the same direction.
Using the mean field approximation we derive the Gross-Pitaevskii equations for both cases, and, supposing the dark matter to be a polytropic fluid, we describe the particles density profile as Thomas-Fermi distributions characterized by the halo radii and in terms of the scattering lengths and mass of each particle.
By comparing this model with data obtained from 42 spiral galaxies and 19 Low Surface Brightness (LSB) galaxies, we constrain the dark matter particle mass to the range $10^{-6}-10^{-4} eV$ and we find the lower bound for the scattering length to be of the order $10^{-14} fm$.

Built on

A. Fetter and J. D. Walecka, Quantum Theory of Many-Particle System
1971
Earlier work this paper cites.
R. D. Peccei, and H. R. Quinn, Phys. Rev. Lett
1977
Earlier work this paper cites.
J. Stenger et al., Nature
1998
Earlier work this paper cites.
T.-L. Ho, Phys. Rev. Lett
1998
Earlier work this paper cites.
C. J. Pethick and H. Smith, Bose-Einstein Condensation in Dilute Gases
2001
Earlier work this paper cites.
C. G. Böhmer and T. Harko, J. Cosmol. Astropart. Phys
2007
Earlier work this paper cites.
S. W. Randall, M. Markevitch, D. Clowe, A. H. Gonzalez, and M. Bradac, Astrophys. J
2008
Earlier work this paper cites.
C. Trachternach et al., Astron. J
2008
Earlier work this paper cites.
L. D. Duffy and P. Sikivie, Phys. Rev. D
Original
2008
Earlier work this paper cites.

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