15 citations
5 papers
Hubble tension in k-essence: Evidence for robust tension alleviation
Isaac Opio, Didam Duniya, Bishop Mongwane +1
The Hubble tension has come to stay as a major problem in modern cosmology as it continues to plague the standard cosmological model (CDM). As one of the viable, self-consistent…
Relativistic effects in k-essence
Didam Duniya, Isaac Opio, Bishop Mongwane +1
Relativistic effects are sensitive to subtle changes in dark energy. These effects grow on very large scales and at high redshifts, which will be the reach of upcoming surveys. We…
Viscous Dark Energy Models with Variable G and Lambda
Arbab I. Arbab
We consider a cosmological model with bulk viscosity () and variable cosmological ) and gravitational () constants. The model exhibits many in…
Phantom Energy with Variable G and Lambda
Arbab I. Arbab
We have investigated a cosmological model of a phantom energy with a variable cosmological constant () depending on the energy density () as , …
On the Planetary acceleration and the Rotation of the Earth
Arbab I. Arbab
We have developed a model for the Earth rotation that gives a good account (data) of the Earth astronomical parameters. These data can be compared with the ones obtained using spac…