Author(s)

Ayman Kassem

Egyptair, Cairo, Egypt.

Assessment of the Hubble parameter as an indicator of the expansion rate of the universe holds a central position in the field of astronomy. From its initial estimate of about 500 km⋅sec^-1⋅parsc^-1, this value had been steadily amended as the observational tools became more accurate and precise. Despite this, a gap remains between the value of observations relating to local and nonlocal estimations of the Hubble parameter that gave rise to what became known as the Hubble tension. This tension is addressed here while dealing with space fabric as a cosmological fluid that undergoes transition.

Cosmic Fluid Transition, Locally Varying Hubble Parameter, Energy Degrees of Freedom

Kassem, A. (2021) Locally Varying Hubble Parameter in Terms of Reduced Friedmann Equation. International Journal of Astronomy and Astrophysics, 11, 175-189. doi: 10.4236/ijaa.2021.112010.