LETTER TO THE EDITOR: Quintessence and scalar dark matter in the Universe
Abstract
Continuing on from previous works, we present a cosmological model in which dark matter and dark energy are modelled by scalar fields Φ and Ψ, respectively, endowed with the scalar potentials V(Φ) = Vo[cosh (λ√κoΦ) - 1] and tildeV (Ψ) = tildeV o[sinh (α√κoΨ)]β. This model contains a 95% scalar field. We obtain that the scalar dark matter mass is mΦ~10-26 eV. The solution obtained allows us to recover the success of standard cold dark matter. The implications on the formation of structure are reviewed. We obtain that the minimal cut-off radio for this model is rc ~ 1.2 kpc.
- Publication:
-
Classical and Quantum Gravity
- Pub Date:
- July 2000
- DOI:
- 10.1088/0264-9381/17/13/101
- arXiv:
- arXiv:astro-ph/0004332
- Bibcode:
- 2000CQGra..17L..75M
- Keywords:
-
- Astrophysics;
- General Relativity and Quantum Cosmology
- E-Print:
- 4 pages REVTeX, 3 eps color figures. Minor changes and references updated. To appear in Classical and Quantum Gravity as a Letter to the Editor. More information at http://www.fis.cinvestav.mx/~siddh/PHI/