搜索结果: 1-5 共查到“物理学 Primordial”相关记录5条 . 查询时间(0.074 秒)
Nuclear reaction rates and the primordial nucleosynthesis
Early Universe Nuclear reaction rates Big-Bang Nucleosynthesis
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2011/7/20
The theoretical predictions of the primordial abundances of elements in the big-bang nucleosynthesis (BBN) are dominated by uncertainties in the input nuclear reaction rates. We investigate the effect...
Gravitational instability of the primordial plasma: anisotropic evolution of structure seeds
Cosmological perturbations Cosmological magnetic fields Structure formation Magnetohydrodynamics
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2011/8/17
Abstract: We study how the presence of a background magnetic field, of intensity compatible with current observation constraints, affects the linear evolution of cosmological density perturbations at ...
The Gauge-Invariant Bias of Dark Matter Haloes with Primordial non-Gaussianity
The Gauge-Invariant Dark Matter Haloes
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2010/12/27
The non-linear evolution of the halo population is followed by solving the continuity equation under the hypothesis that haloes move by the action of gravity. An exact and general formula for the Eule...
Inflation in Entropic Cosmology: Primordial Perturbations and non-Gaussianities
Entropic Cosmology Primordial Perturbations non-Gaussianities
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2010/12/23
We investigate thermal inflation in double-screen entropic cosmology. We find that its realization is general, resulting from the system evolution from non-equilibrium to equilibrium. Furthermore, goi...
Inflation in Entropic Cosmology: Primordial Perturbations and non-Gaussianities
Inflation in Entropic Cosmology Primordial Perturbations non-Gaussianities
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2010/12/21
We investigate thermal inflation in double-screen entropic cosmology. We find that its realization is general, resulting from the system evolution from non-equilibrium to equilibrium. Furthermore,goin...