文章基本信息

标题：On a Slightly Different Power Law-Scaling for the Flat Universe
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作者：C. Sivakumar ; R. Francis
期刊名称：Journal of Scientific Research
印刷版ISSN：2070-0237
电子版ISSN：2070-0245
出版年度：2020
卷号：12
期号：4
页码：569-574
DOI：10.3329/jsr.v12i4.46721
出版社：Rajshahi University
摘要：A slightly different power law-scaling fits to the picture of our 13.7 billion years old flat universe which is expanding presently at 67 km/s/Mpc with an acceleration. The model which is an attempt to retain power-law scaling in the light of the accepted facts about the universe we are living in, has a constant effective equation of state parameter as the cosmic fluid is a solution of matter, radiation and dark energy. It is successful in explaining the acceleration of universe which the normal power law fails if the present Hubble parameter is 67 km/s/Mpc and age of the universe is 13.7 billion years, and it is free from the defect of singularity.
关键词：Hubble parameter; Power law-scaling; Equation of state parameter; Dark energy.