Late time Acceleration and Role of Skewness in Anisotropic models
arXiv:1407.7791 · doi:10.1007/s10509-013-1727-4
Abstract
We study cosmological models with anisotropy in expansion rates in the context of the recent observations predicting an accelerating universe. In the absence of any anisotropy in the cosmic fluid, it is shown that the role of skewness in directional Hubble rates is crucial in deciding the behavior of the model. We find that incorporation of skewness leads to a more evolving effective equation of state parameter.
15 pages, 4 figures, Astrophysics Space Science, 2014
References in corpus (8)
- Dynamics of dark energy
- Dark energy cosmology: the equivalent description via different theoretical models and cosmography tests
- Five-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Data Processing, Sky Maps, and Basic Results
- Inflationary Universe with Anisotropic Hair
- Five-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Angular Power Spectra
- Cosmic Microwave Background Quadrupole and Ellipsoidal Universe
- Anisotropic Cosmological Constant and the CMB Quadrupole Anomaly
- Anisotropic Fluid and Bianchi Type III Model in f(R) Gravity
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