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- W2515691890 endingPage "1201" @default.
- W2515691890 startingPage "1192" @default.
- W2515691890 abstract "We study the main cosmological properties of the agegraphic dark energy model at the expansion and perturbation levels. Initially, using the latest cosmological data we implement a joint likelihood analysis in order to constrain the cosmological parameters. Then we test the performance of the agegraphic dark energy model at the perturbation level and we define its difference from the usual $Lambda$CDM model. Within this context, we verify that the growth index of matter fluctuations depends on the choice of the considered agegraphic dark energy (homogeneous or clustered). In particular, assuming a homogeneous agegraphic dark energy we find, for the first time, that the asymptotic value of the growth index is $gamma approx 5/9$, which is close to that of the usual $Lambda$ cosmology, $gamma^{(Lambda)} approx 6/11$. Finally, if the distribution of dark energy is clustered then we obtain $gamma approx 1/2$ which is $sim 8%$ smaller than that of the $Lambda$CDM model." @default.
- W2515691890 created "2016-09-16" @default.
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- W2515691890 creator A5039582191 @default.
- W2515691890 creator A5085403901 @default.
- W2515691890 date "2016-09-27" @default.
- W2515691890 modified "2023-10-02" @default.
- W2515691890 title "Agegraphic dark energy: growth index and cosmological implications" @default.
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