Observational constraints on holographic tachyonic dark energy in interaction with dark matter

Details Observational constraints on holographic tachyonic dark energy in interaction with dark matter Observational constraints on holographic tachyonic dark energy in interaction with dark matter

2009-12-20

arxiv.org/abs/0912.3992v3

JCAP 1005:009,2010

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

14 pages, 5 figures

Scientific paper

10.1088/1475-7516/2010/05/009

We discuss an interacting tachyonic dark energy model in the context of the holographic principle. The potential of the holographic tachyon field in interaction with dark matter is constructed. The model results are compared with CMB shift parameter, baryonic acoustic oscilations, lookback time and the Constitution supernovae sample. The coupling constant of the model is compatible with zero, but dark energy is not given by a cosmological constant.

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