Scaling Dark Energy

Preprint

5 August 2004

preprint
Published by arXiv in arXiv

Abstract

We investigate the possibility of a dark energy component that is scaling with epochs. A phenomenological model is introduced whose energy density depends on the redshift in such a way that a smooth transition among the three dominant phases of the universe evolution (radiation era, matter domination, asymptotic de Sitter state) is achieved. We use the WMAP Cosmic Microwave Background data and the luminosity distances of Type Ia Supernovae to test whether this data can provide a signal for scaling.

Keywords

PHENOMENOLOGICAL MODEL
LUMINOSITY DISTANCES
ENERGY COMPONENT
DOMINANT PHASES
RADIATION ERA
SITTER STATE
SCALING DARK
DARK ENERGY
EVOLUTION

All Related Versions

Version 1, 2004-08-05, ArXiv
Version 2, 2004-08-06, ArXiv
Published version: Physical Review D, 70 (10).

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