11 citations · 37 across the 4 of their papers we have counts for
4 papers
A comprehensive data-driven odyssey to explore the equation of state of dark energy
Bikash R. Dinda, Narayan Banerjee
For the first time, we reconstruct the dark energy equation of the state parameter from the combination of background and perturbation observations, specifically combining the…
Checking the second law at cosmic scales
Narayan Banerjee, Purba Mukherjee, Diego Pavón
Based on recent data about the history of the Hubble factor, it is argued that the second law of thermodynamics holds at the largest scales accessible to observation. This is consi…
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…
Signature flip in deceleration parameter: A thermodynamic phase transition?
Tanima Duary, Narayan Banerjee, Ananda Dasgupta
Using the Hayward-Kodama temperature for the apparent horizon, it is found that matter content in the Universe is not thermodynamically stable, and the entry to the late accelerate…