The Mass Density Contrast in Perturbed Friedman–Lemaître–Robertson–Walker Cosmologies

IF 0.9 4区物理与天体物理 Q3 PHYSICS, MULTIDISCIPLINARY

Acta Physica Polonica B Pub Date : 2023-08-07 DOI:10.5506/aphyspolb.54.11-a2

E. Malec

引用次数: 0

Abstract

We analyze the evolution of the mass density contrast in spherical perturbations of flat Friedman-Lemaitre-Robertson-Walker cosmologies. Both dark matter and dark energy are included. In the absence of dark energy the evolution equation coincides with that obtained by Bonnor within the ``Newtonian cosmology''.

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扰动弗里德曼-勒梅特尔-罗伯逊-沃克宇宙学中的质量密度对比

我们分析了平坦的弗里德曼-勒梅特-罗伯逊-沃克宇宙学的球形扰动中质量密度对比的演变。暗物质和暗能量都包含在内。在没有暗能量的情况下，演化方程与波诺在 "牛顿宇宙学 "中得到的方程相吻合。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Acta Physica Polonica B 物理-物理：综合

CiteScore

1.70

自引率

20.00%

发文量

审稿时长

3-8 weeks

期刊介绍： Acta Physica Polonica B covers the following areas of physics: -General and Mathematical Physics- Particle Physics and Field Theory- Nuclear Physics- Theory of Relativity and Astrophysics- Statistical Physics