109 citations · 655 across the 22 of their papers we have counts for
3 papers · 1 filter
Optimal Trispectrum Estimators and WMAP Constraints
J. R. Fergusson, D. M. Regan, E. P. S. Shellard
We present an implementation of an optimal CMB trispectrum estimator which accounts for anisotropic noise and incomplete sky coverage. We use a general separable mode expansion whi…
Rapid Separable Analysis of Higher Order Correlators in Large Scale Structure
J. R. Fergusson, D. M. Regan, E. P. S. Shellard
We present an efficient separable approach to the estimation and reconstruction of the bispectrum and the trispectrum from observational (or simulated) large scale structure data.…
General CMB and Primordial Trispectrum Estimation
D. M. Regan, E. P. S. Shellard, J. R. Fergusson
We present trispectrum estimation methods which can be applied to general non-separable primordial and CMB trispectra. We present a general optimal estimator for the connected part…