Late-time Phase transition and the Galactic halo as a Bose Liquid: (II) the Effect of Visible Matter

Details Late-time Phase transition and the Galactic halo as a Bose Liquid: (II) the Effect of Visible Matter Late-time Phase transition and the Galactic halo as a Bose Liquid: (II) the Effect of Visible Matter

1994-09-10

arxiv.org/abs/hep-ph/9409267v1

Phys.Rev.D50:3655-3659,1994

Physics

High Energy Physics

High Energy Physics - Phenomenology

10 pages, 10 figures included, to appear in Phys. Rev. D50,p3655

Scientific paper

10.1103/PhysRevD.50.3655

In the previous work, we investigated the rotation curves of galaxies assuming that the dark matter consists of ultra light boson appearing in $'$late time phase transition' theory. Generalizing this work, we consider the effect of visible matter and classify the types of rotation curves as we vary the fraction of the mass and extention of visible matter. We show that visible matter, in galaxies with flat rotation curves, has mass fraction $ 2\% \sim 10\% $ and it is confined within the distance fraction $ 10\% \sim 20\%$.

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