activity
19972023
most citedCosmic acceleration without quintessence

255 citations · 2.2k across the 80 of their papers we have counts for

collaborators

80 papers

gr-qc2023

Realisations of type III stress-energy tensors of the Hawking-Ellis classification in scalar-tensor gravity

Narayan Banerjee, Valerio Faraoni, Robert Vanderwee +1

The ``ugly duckling'' of the Segré-Plebański-Hawking-Ellis classification of stress-energy tensors is believed to be either impossible or extremely difficult to realise in Einstein…

astro-ph.CO2023★ 14 cited

Spatial Curvature and Thermodynamics

Narayan Banerjee, Purba Mukherjee, Diego Pavón

Reasonable parametrizations of the current Hubble data set of the expansion rate of our homogeneous and isotropic universe, after suitable smoothing of these data, strongly suggest…

astro-ph.CO2022★ 32 cited

Model independent bounds on Type Ia supernova absolute peak magnitude

Bikash R. Dinda, Narayan Banerjee

We put constraints on the peak absolute magnitude, of type Ia supernova using the Pantheon sample for type Ia supernova observations and the cosmic chronometers data for the…

astro-ph.CO2022★ 35 cited

Constraining the curvature density parameter in cosmology

Purba Mukherjee, Narayan Banerjee

The cosmic curvature density parameter has been constrained in the present work independent of any background cosmological model. The reconstruction is performed adopting the non-p…

astro-ph.CO2021★ 31 cited

Non-parametric reconstruction of interaction in the cosmic dark sector

Purba Mukherjee, Narayan Banerjee

The possibility of a non-gravitational interaction between the dark matter and the dark energy has been reconstructed using some recent datasets. The crucial aspect is that the int…

gr-qc2021★ 17 cited

The Raychaudhuri equation for a quantized timelike geodesic congruence

Shibendu Gupta Choudhury, Ananda Dasgupta, Narayan Banerjee

A recent attempt to arrive at a quantum version of Raychaudhuri's equation is looked at critically. It is shown that the method, and even the idea, has some inherent problems. The…