| Autor: |
El-Nabulsi, Rami Ahmad, Anukool, Waranont |
| Zdroj: |
European Physical Journal Plus; Apr2024, Vol. 139 Issue 4, p1-18, 18p |
| Abstrakt: |
We study the late-time cosmological dynamics of the Friedmann-Robertson-Walker fractal universe based on power counting renormalizable field in dynamical Chern–Simons modified gravity living in a fractal spacetime. The model is characterized by a time-varying gravitational constant and two-fluids which impose a non-violation of the Bianchi identity. Several plausible solutions of the field's equations characterized by power-law evolutions have been discussed. We have constrained our model with recent astronomical data based on Hubble Space Telescope, Type Ia supernovae (SNe) data + SH0ES program, Quasar lensing system RXJ1131-1231, etc., which offers different measurements of the Hubble parameter (Hubble tension) and recent data obtained from LEGA-C ESO. It was observed that the universe is acceleratedly expanding wit time and its fractal dimension lies between 2 and 2.5. Additional features have been obtained and discussed. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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