20 citations · 28 across the 9 of their papers we have counts for
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gr-qc2021★ 2 cited
Confronting the Chaplygin gas with data: background and perturbed cosmic dynamics
Shambel Sahlu, Heba Sami, Renier Hough +3
In this paper, we undertake a unified study of background dynamics and cosmological perturbations in the presence of the Chaplygin gas. This is done by first constraining the backg…
gr-qc2021
Cosmic hierarchy in gravity
Heba Sami, Amare Abebe
In this contribution, we investigate hierarchical nature of large-scale structure clustering through the oscillatory nature of the solutions of the Schrödinger-like Friedmann equat…
gr-qc2021
Covariant density and velocity perturbations of the quasi-Newtonian cosmological model in gravity
Heba Sami, Shambel Sahlu, Amare Abebe +1
We investigate classes of shear-free cosmological dust models with irrotational fluid flows within the framework of gravity. In particular, we use the covariant form…