Abinash Kumar Shaw

TL;DR: In this paper, the authors present a methodology for incorporating binned power spectrum and trispectrum from simulations to make error predictions for observations with any radio-interferometric array.

TL;DR: In this paper, the EoR 21-cm MAPS was measured at a confidence level of 5σigma at angular scales of 12σ and 1300σ for total observation time of 128σ and 128σ, respectively.

TL;DR: In this paper, the authors proposed a simple model where the systematic frequency dependence of C l(ν 1,ν 2) arises entirely due to the evolution of x ¯ HI (ν).

TL;DR: In this paper, the authors consider a reionization model with three astrophysical parameters, namely the minimum halo mass which can host ionizing sources, the number of ionizing photons escaping into the IGM per baryon within the halo, and the mean free path of the ionizing photon within the IG, and predict the accuracy with which these parameters can be measured from future observations of the 21 cm power spectrum (PS) using the upcoming SKA-Low.

TL;DR: In this article, the spherically averaged bispectrum of the 21-cm signal from the Epoch of Reionization (EoR) was calculated using a semi-numerical light-cone simulation and an ensemble of 50 independent realisations of the signal to estimate the cosmic variance errors.