186 citations · 1.7k across the 54 of their papers we have counts for
4 papers · 1 filter
Changes in the halo formation rates due to features in the primordial spectrum
Dhiraj Kumar Hazra
Features in the primordial scalar power spectrum provide a possible roadway to describe the outliers at the low multipoles in the WMAP data. Apart from the CMB angular power spectr…
The scalar bi-spectrum during preheating in single field inflationary models
Dhiraj Kumar Hazra, Jerome Martin, L. Sriramkumar
In single field inflationary models, preheating refers to the phase that immediately follows inflation, but precedes the epoch of reheating. During this phase, the inflaton typical…
Primordial Non-Gaussianity in the Forest: 3D Bispectrum of Ly-alpha Flux Spectra Along Multiple Lines of Sight
Dhiraj Kumar Hazra, Tapomoy Guha Sarkar
We investigate the possibility of constraining primordial non-Gaussianity using the 3D bispectrum of Ly-alpha forest. The strength of the quadratic non-Gaussian correction to an ot…
BINGO: A code for the efficient computation of the scalar bi-spectrum
Dhiraj Kumar Hazra, L. Sriramkumar, Jerome Martin
We present a new and accurate Fortran code, the BI-spectra and Non-Gaussianity Operator (BINGO), for the efficient numerical computation of the scalar bi-spectrum and the non-Gauss…