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Article overview
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Constraints on running vacuum model with $H(z)$ and $f sigma_8$ | Chao-Qiang Geng
; Chung-Chi Lee
; Lu Yin
; | Date: |
7 Apr 2017 | Abstract: | We examine the the running vacuum model with $Lambda (H) = 3
u H^2 +
Lambda_0$, where $
u$ is the model parameter and $Lambda_0$ is the
cosmological constant. From the data of the cosmic microwave background
radiation, weak lensing and baryon acoustic oscillation along with the time
dependent Hubble parameter $H(z)$ and weighted linear growth $f (z)sigma_8(z)$
measurements, we find that $
u=(1.37^{+0.72}_{-0.95}) imes 10^{-4}$ with the
best fitted $chi^2$ value slightly smaller than that in the $Lambda$CDM
model. | Source: | arXiv, 1704.2136 | Services: | Forum | Review | PDF | Favorites |
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