Open AccessOn a Slightly Different Power Law-Scaling for the Flat Universe
Author(s) -
C. Sivakumar,
R. Francis
Publication year - 2020
Publication title -
journal of scientific research
Language(s) - English
Resource type - Journals
eISSN - 2070-0245
pISSN - 2070-0237
DOI - 10.3329/jsr.v12i4.46721
Subject(s) - physics , universe , dark energy , hubble's law , metric expansion of space , scaling , power law , acceleration , age of the universe , big rip , scale factor (cosmology) , equation of state , deceleration parameter , hubble volume , cosmic cancer database , astrophysics , theoretical physics , de sitter universe , cosmology , classical mechanics , quantum mechanics , geometry , mathematics , statistics
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.