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arXiv · 1206.0179

Holographic dark energy linearly interacting with dark matter

Luis P. Chimento·Mónica I. Forte·Martín G. Richarte
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Abstract

We investigate a spatially flat Friedmann-Robertson-Walker (FRW) cosmological model with cold dark matter coupled to a modified holographic Ricci dark energy through a general interaction term linear in the energy densities of dark matter and dark energy, the total energy density and its derivative. Using the statistical method of $\chi^2$-function for the Hubble data, we obtain $H_0=73.6$km/sMpc, $\omega_s=-0.842$ for the asymptotic equation of state and $ z_{acc}= 0.89 $. The estimated values of $\Omega_{c0}$ which fulfill the current observational bounds corresponds to a dark energy density varying in the range $0.25R < \ro_x < 0.27R$.

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Luis P. Chimento, Mónica I. Forte, Martín G. Richarte. 2012-06-01. Holographic dark energy linearly interacting with dark matter. https://doi.org/10.1063/1.4756809

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