6.6k citations · 43k across the 174 of their papers we have counts for
5 papers · 1 filter
Fast Estimator of Primordial Non-Gaussianity from Temperature and Polarization Anisotropies in the Cosmic Microwave Background II: Partial Sky Coverage and Inhomogeneous Noise
Amit P. S. Yadav, Eiichiro Komatsu, Benjamin D. Wandelt +3
In our recent paper (Yadav et al. 2007) we described a fast cubic (bispectrum) estimator of the amplitude of primordial non-Gaussianity of local type, f_{NL}, from a combined analy…
The scalar perturbation spectral index n_s: WMAP sensitivity to unresolved point sources
K. M. Huffenberger, H. K. Eriksen, F. K. Hansen +2
Precision measurement of the scalar perturbation spectral index, n_s, from the Wilkinson Microwave Anisotropy Probe temperature angular power spectrum requires the subtraction of u…
Temperature and Polarization CMB Maps from Primordial non-Gaussianities of the Local Type
Michele Liguori, Amit Yadav, Frode K. Hansen +3
The forthcoming Planck experiment will provide high sensitivity polarization measurements that will allow us to further tighten the f_NL bounds from the temperature data. Monte Car…
Fast Estimator of Primordial Non-Gaussianity from Temperature and Polarization Anisotropies in the Cosmic Microwave Background
Amit P. S. Yadav, Eiichiro Komatsu, Benjamin D. Wandelt
Measurements of primordial non-Gaussianity () open a new window onto the physics of inflation. We describe a fast cubic (bispectrum) estimator of , using a combined…
Hemispherical power asymmetry in the three-year Wilkinson Microwave Anisotropy Probe sky maps
H. K. Eriksen, A. J. Banday, K. M. Gorski +2
We consider the issue of hemispherical power asymmetry in the three-year WMAP data, adopting a previously introduced modulation framework. Computing both frequentist probabilities…