Revisiting the cosmological constraints on the interacting dark energy models

Hao Wei

doi:10.1016/j.physletb.2010.06.038

Revisiting the cosmological constraints on the interacting dark energy models

Hao Wei^*

^*Corresponding author for this work

School of Physics

Research output: Contribution to journal › Article › peer-review

35 Citations (Scopus)

Abstract

In this work, we consider the cosmological constraints on the interacting dark energy models. We generalize the models considered previously by Guo et al. (2007) [1], Costa and Alcaniz (2010) [2], and try to discuss two general types of models: type I models are characterized by ρX/ρm=f(a) and f(a) can be any function of scale factor a, whereas type II models are characterized by ρm = ρm0a^-3+ε(a) and ε(a) can be any function of a. We obtain the cosmological constraints on the type I and II models with power-law, CPL-like, logarithmic f(a) and ε(a) by using the latest observational data.

Original language	English
Pages (from-to)	173-182
Number of pages	10
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	691
Issue number	4
DOIs	https://doi.org/10.1016/j.physletb.2010.06.038
Publication status	Published - Aug 2010

Keywords

Cosmological constraints
Interacting dark energy models

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10.1016/j.physletb.2010.06.038

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abstract = "In this work, we consider the cosmological constraints on the interacting dark energy models. We generalize the models considered previously by Guo et al. (2007) [1], Costa and Alcaniz (2010) [2], and try to discuss two general types of models: type I models are characterized by ρX/ρm=f(a) and f(a) can be any function of scale factor a, whereas type II models are characterized by ρm = ρm0a-3+ε(a) and ε(a) can be any function of a. We obtain the cosmological constraints on the type I and II models with power-law, CPL-like, logarithmic f(a) and ε(a) by using the latest observational data.",

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AB - In this work, we consider the cosmological constraints on the interacting dark energy models. We generalize the models considered previously by Guo et al. (2007) [1], Costa and Alcaniz (2010) [2], and try to discuss two general types of models: type I models are characterized by ρX/ρm=f(a) and f(a) can be any function of scale factor a, whereas type II models are characterized by ρm = ρm0a-3+ε(a) and ε(a) can be any function of a. We obtain the cosmological constraints on the type I and II models with power-law, CPL-like, logarithmic f(a) and ε(a) by using the latest observational data.

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Revisiting the cosmological constraints on the interacting dark energy models

Abstract

Keywords

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