81 citations · 521 across the 33 of their papers we have counts for
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Cosmic curvature on large-scale structures with homogeneous dark energy
Bikash R. Dinda
This study explores the impact of cosmic curvature on structure formation through general relativistic first-order perturbation theory. We analyze continuity and Euler equations, i…
Analytical Gaussian Process Cosmography: Unveiling Insights into Matter-Energy Density Parameter at Present
Bikash R. Dinda
In this study, we introduce a novel analytical Gaussian Process (GP) cosmography methodology, leveraging the differentiable properties of GPs to derive key cosmological quantities…
Constraints on the speed of sound in the k-essence model of dark energy
Bikash R. Dinda, Narayan Banerjee
We consider a particular k-essence scalar field model for the late-time cosmic acceleration in which the sound speed, parametrized as is constant. We compute the relevant bac…
21 cm Power Spectrum for Bimetric Gravity and its Detectability with SKA1-Mid Telescope
Ajay Bassi, Bikash R. Dinda, Anjan A. Sen
We consider a modified gravity theory through a special kind of ghost-free bimetric gravity, where one massive spin-2 field interacts with a massless spin-2 field. In this bimetric…
Constraints on cosmic curvature from cosmic chronometer and quasar observations
Bikash R. Dinda, Haveesh Singirikonda, Subhabrata Majumdar
We consider cosmic chronometer (CC) data for the Hubble parameter, quasar (QSO) luminosities data of X-rays and ultraviolet rays emission, and the latest measurements of the presen…