159 citations · 1.3k across the 43 of their papers we have counts for
5 papers · 1 filter
Features of galactic halo in a brane world model and observational constraints
K. K. Nandi, A. I. Filippov, F. Rahaman +4
Several aspects of the 4d imprint of the 5d bulk Weyl radiation are investigated within a recently proposed model solution. It is shown that the solution has a number of physically…
Time variable and the accelerating Universe
U. Mukhopadhyay, Saibal Ray, A. A. Usmani +1
We perform a deductive study of accelerating Universe and focus on the importance of variable time-dependent in the Einstein's field equations under the phenomenological assump…
Electromagnetic mass model admitting conformal motion
Saibal Ray, A A Usmani, F Rahaman +2
We study charged fluid spheres under the 4-dimensional Einstein-Maxwell space-time. The solutions thus obtained admitting conformal motion. We also investigate whether the solution…
Galactic rotation curves and brane world models
F. Rahaman, M. Kalam, A. DeBenedictis +2
In the present investigation flat rotational curves of the galaxies are considered under the framework of brane-world models where the 4d effective Einstein equation has extra term…
The dark energy equation of state
A. A. Usmani, P. P. Ghosh, Utpal Mukhopadhyay +2
We perform a study of cosmic evolution with an equation of state parameter by selecting a phenomenological model of the form, . This si…