10 citations · 19 across the 9 of their papers we have counts for
4 papers · 1 filter
Probing gravity beyond general relativity with bispectrum multipoles of cosmological tracers: I. Theoretical Foundations
Sukhdeep Singh Gill
The bispectrum, being sensitive to non-Gaussianity and mode coupling of cosmological fields induced by non-linear gravitational evolution, serves as a powerful probe for detecting…
The EoR 21-cm Bispectrum at from MWA data I: Foregrounds and preliminary upper limits
Sukhdeep Singh Gill, Somnath Bharadwaj, Khandakar Md Asif Elahi +2
We attempt to measure the Epoch of Reionization (EoR) 21-cm bispectrum (BS) using Murchison Widefield Array (MWA) data. We find that $B(k_{1\perp}, k…
A Visibility-based 21 cm Bispectrum Estimator for Radio-interferometric Data
Sukhdeep Singh Gill, Somnath Bharadwaj
We present a fast and scalable estimator for the binned multi-frequency angular bispectrum (MABS) and the 3D bispectrum (BS) of the redshifted 21 cm signal from radio interferometr…
A visibility-based angular bispectrum estimator for radio-interferometric data
Sukhdeep Singh Gill, Somnath Bharadwaj, Sk. Saiyad Ali +1
Considering radio-interferometric observations, we present a fast and efficient estimator to compute the binned angular bispectrum (ABS) from gridded visibility data. The estimator…