Angular sizes in spherically symmetric Stephani cosmological models
作者： Jerzy Stelmach , Izabela Jakacka
DOI: 10.1088/0264-9381/23/23/003
关键词: Equation of state 、 Cosmic microwave background 、 Physics 、 Quantum mechanics 、 Circular symmetry 、 Redshift 、 Mathematical physics 、 Context (language use) 、 Symmetry (physics) 、 Cosmology 、 Universe
摘要: Spherically symmetric Stephani cosmological models are considered in the context of angular sizes compact as well expanding objects percepted by an observer placed at symmetry centre. We assume that matter filling up universe satisfies barotropic equation state centre p(r ≈ 0, t) = αρ(t). Angular examined a function parameter α, energy density Ωα0 and redshift z. Small angle anisotropies microwave background radiation connected with typical fluctuation mass corresponding to galaxy also calculated model. Finally horizon problem is discussed detail.
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