Scaling Dark Energy

Details Scaling Dark Energy Scaling Dark Energy

2004-08-05

arxiv.org/abs/astro-ph/0408112v2

Phys.Rev. D70 (2004) 101301

Astronomy and Astrophysics

Astrophysics

5 pages 4 figures

Scientific paper

10.1103/PhysRevD.70.101301

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.

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