Constraints on running vacuum model with $H(z)$ and $f \sigma_8$ - INSPIRE

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Constraints on running vacuum model with $H(z)$ and $f \sigma_8$

Chao-Qiang Geng
(
- CUPT, Chongqing and
- Taiwan, Natl. Tsing Hua U. and
- NCTS, Hsinchu
)
,
Chung-Chi Lee
(
- Cambridge U., DAMTP
)
,
Lu Yin
(
- Taiwan, Natl. Tsing Hua U.
)

Apr 7, 2017

14 pages

Published in:

JCAP 08 (2017) 032

Published: Aug 25, 2017

e-Print:

1704.02136 [astro-ph.CO]

DOI:

10.1088/1475-7516/2017/08/032

Report number:

JCAP-1708-(2017)-032

View in:

ADS Abstract Service

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Abstract: (IOP)

We examine the running vacuum model with Λ (H) = 3 ν H(2) + Λ(0), where ν is the model parameter and Λ(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)σ(8)(z) measurements, we find that ν=(1.37(+0.72)(−)(0.95))× 10(−)(4) with the best fitted χ(2) value slightly smaller than that in the ΛCDM model.

Note:

15 pages, 1 figure, revised version accepted by JCAP

dark ages, reionization, first stars
ISM: lines and bands
large-scale structure of univers

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Figures(1)

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