Quintessence and scalar dark matter in the Universe
Tonatiuh MatosDepartamento de Física, Centro de Investigación y de Estudios Avanzados del IPN, AP 14-740, 07000 México DF, MexicoL. Arturo Ureña–LópezDepartamento de Física, Centro de Investigación y de Estudios Avanzados del IPN, AP 14-740, 07000 México DF, Mexico
2000en
ABI
Abstract
Continuing with previous works, we present a cosmological model in which dark matter and dark energy are modeled by scalar fields $\\Phi $ and $\\Psi$, respectively, endowed with the scalar potentials $V(\\Phi)=V_{o}[ \\cosh {(\\lambda \\sqrt{\\kappa_{o}}\\Phi)}-1] $ and $\\tilde{V}(\\Psi)=\\tilde{V_{o}}[ \\sinh {(\\alpha \\sqrt{\\kappa_{o}}\\Psi)}] ^{\\beta}$. This model contains 95% of scalar field. We obtain that the scalar dark matter mass is $m_{\\Phi}\\sim 10^{-26}eV.$ The solution obtained allows us to recover the success of the standard CDM. The implications on the formation of structure are reviewed. We obtain that the minimal cutoff radio for this model is $r_{c}\\sim 1.2 kpc.$
Identifiers
Citations and references
Cited by 20 references