Observational cosmology in macroscopic gravity
Observational cosmology in macroscopic gravity
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宏观引力观测宇宙学
DOI:
10.1088/1475-7516/2012/10/044
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发表时间:
2012
影响因子:
6.4
通讯作者:
Clifton T
中科院分区:
文献类型:
--
作者:
Clifton T
We discuss the construction of cosmological models within the framework of Macroscopic Gravity (MG), which is a theory that models the effects of averaging the geometry of space-time on large scales. We find new exact spatially homogeneous and isotropic FLRW solutions to the MG field equations, and investigate large-scale perturbations around them. We find that any inhomogeneous perturbations to the averaged geometry are severely restricted, but that possible anisotropies in the correlation tensor can have dramatic consequences for the measurement of distances. These calculations are a first step within the MG approach toward developing averaged cosmological models to a point where they can be used to interpret real cosmological data, and hence to provide a working alternative to the``concordance''ΛCDM model.
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影响因子:
5
作者:
Coley, A. A.;Pelavas, N.
通讯作者:
Pelavas, N.
影响因子:
8.6
作者:
A. Coley;N. Pelavas;R. Zalaletdinov
通讯作者:
A. Coley;N. Pelavas;R. Zalaletdinov
影响因子:
5
作者:
Coley, A. A.;Pelavas, N.
通讯作者:
Pelavas, N.
DOI:
--
发表时间:
2012
期刊:
影响因子:
--
作者:
K. Bolejko;P. Ferreira
通讯作者:
P. Ferreira
影响因子:
5
作者:
Clarkson C
通讯作者:
Clarkson C