Galactic Halos As Boson Stars

Abstract

We investigate the boson star with the self-interacting scalar field as a model of galactic halos. The model has slightly increasing rotation curves and allows wider ranges of the mass($m$) and coupling($\lambda$) of the halo dark matter particle than the non-interacting model previously suggested(ref.\cite{sin1}). Two quantities are related by $λ^{\frac{1}{2}} (m_p/m)^2\st{>}{\sim} 10^{50}$.

15 pages. Standard Latex file with 2 tex figures. Revised version to be published in Phy. Rev. D. (Stability arguments are added.)

References in corpus (2)

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

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