A New Version of the Lambda-CDM Cosmological Model, with Extensions and New Calculations
A New Version of the Lambda-CDM Cosmological Model, with Extensions and New Calculations作者机构：Department of Electrical Engineering Technical University Berlin Berlin Germany
出 版 物：《Journal of Modern Physics》 (现代物理（英文）)
年 卷 期：2024年第15卷第2期
页 面：193-238页
学科分类：07[理学] 0701[理学-数学] 070101[理学-基础数学]
主 题：Lambda-DCM Friedmann Equations CMB Metric Perturbation Hubble Parameter
摘 要：This article gives a state-of-the-art description of the cosmological Lambda-CDM model and in addition, presents extensions of the model with new calculations of background and CMB functions. Chapters 1-4 describe the background part of the model, i.e. the evolution of scale factor and density according to the Friedmann equations, and its extension, which results in a correction of the Hubble parameter, in agreement with new measurements (Cepheids-SNIa and Red-Giants). Based on this improved background calculation presented in chapters 5-9 the perturbation part of the model, i.e. the evolution of perturbation and structure according to the perturbed Einstein equations and continuity-Euler equations, and the power spectrum of the cosmic microwave background (CMB) is calculated with a new own code.
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