11 citations · 14 across the 8 of their papers we have counts for
8 papers
Thermodynamic reconstruction in observationally constrained dynamical dark energy models
Sonej Alam
We perform an observational and thermodynamic analysis of four cosmological models CDM, CPL, MPL, and the three-parameter MmAH parametrization. All dynamical models improve the…
Gaussian process reconstruction of scalar field dynamics from recent cosmological data
Afaq Maqsood, Sonej Alam, Md. Wali Hossain
We reconstruct the late-time expansion history and dark energy dynamics using available cosmological data. We consider dark energy as an effective minimally coupled canonical scala…
Dissipative Cosmology and the Nature of Dark Energy: Insights from Bulk Viscosity with DESI DR2 observations
Shahnawaz A. Adil, Sonej Alam, Somasri Sen +1
We explore a cosmological model in which dark energy is described by a bulk viscous fluid, providing a dissipative mechanism for late-time cosmic acceleration. Considering both min…
Observational constraints on early time non-phantom behaviour of dynamical dark energy
Sk. Sohail, Sonej Alam, Md. Wali Hossain
We investigate dynamical dark energy models that admit non-phantom behaviour at early times, including thawing, scaling--thawing, and effective fluid extensions. Using current cosm…
Beyond CPL: Evidence for dynamical dark energy in three-parameter models
Sonej Alam, Md. Wali Hossain
We introduce two three-parameter extensions of the minimal Akhtar-Hossain (mAH) dark energy parametrization, termed modified minimal AH (MmAH1 and MmAH2), which provide a smooth an…
Bouncing Cosmologies in modified gravity with space time torsion
Sonej Alam, Somasri Sen, Soumitra Sengupta
We explore the possibility of realizing a non-singular bounce in the early universe within the framework of modified gravity with spacetime torsion. In Einstein Cartan theory, tors…
Quintessential early dark energy
Sk. Sohail, Sonej Alam, Shiriny Akthar +1
We introduce a unified model of early and late dark energy. We call it {\it quintessential early dark energy} model where early and late dark energy are explained by a single scala…
Absence of antisymmetric tensor fields : Clue from f(R) model of gravity
Sonej Alam, Somasri Sen, Soumitra Sengupta
One of the surprising aspects of the present Universe, is the absence of any noticeable observable effects of higher-rank antisymmetric tensor fields in any natural phenomena. Here…