457 citations · 2.3k across the 77 of their papers we have counts for
12 papers · 1 filter
Spin Needlets for Cosmic Microwave Background Polarization Data Analysis
Daryl Geller, Frode K. Hansen, Domenico Marinucci +2
Scalar wavelets have been used extensively in the analysis of Cosmic Microwave Background (CMB) temperature maps. Spin needlets are a new form of (spin) wavelets which were introdu…
Needlet Detection of Features in WMAP CMB Sky and the Impact on Anisotropies and Hemispherical Asymmetries
Davide Pietrobon, Alexandre Amblard, Amedeo Balbi +3
We apply spherical needlets to the Wilkinson Microwave Anisotropy Probe 5-year cosmic microwave background (CMB) dataset, to search for imprints of non-isotropic features in the CM…
Dark Energy Constraints from Needlets Analysis of Wmap3 and NVSS Data
Davide Pietrobon, Amedeo Balbi, Domenico Marinucci
We cross-correlate the new 3 year Wilkinson Microwave Anistropy Probe (WMAP3) cosmic microwave background (CMB) data with the NRAO VLA Sky Survey (NVSS) radio galaxy data, and find…
Integrated Sachs-Wolfe effect from the cross correlation of WMAP3 year and the NRAO VLA sky survey data: New results and constraints on dark energy
Davide Pietrobon, Amedeo Balbi, Domenico Marinucci
We cross-correlate the new 3 year Wilkinson Microwave Anistropy Probe (WMAP) cosmic microwave background (CMB) data with the NRAO VLA Sky Survey (NVSS) radio galaxy data, and find…
The integrated bispectrum as a test of CMB non-Gaussianity: detection power and limits on f_NL with WMAP data
P. Cabella, F. K. Hansen, M. Liguori +4
We propose a fast and efficient bispectrum statistic for Cosmic Microwave Background (CMB) temperature anisotropies to constrain the amplitude of the primordial non-Gaussian signal…
Primordial non-Gaussianity: local curvature method and statistical significance of constraints on f_NL from WMAP data
P. Cabella, M. Liguori, F. K. Hansen +4
We test the consistency of estimates of the non-linear coupling constant f_{NL} using non-Gaussian CMB maps generated by the method described in (Liguori, Matarrese and Moscardini…
Asymmetries in the local curvature of the WMAP data
Frode K. Hansen, Paolo Cabella, Domenico Marinucci +1
We use the local curvature to investigate the possible existence of non-Gaussianity/asymmetry in the WMAP data. Considering the full sky we find results which are consistent with t…
Unbiased Estimation of an Angular Power Spectrum
G. Polenta, D. Marinucci, A. Balbi +5
We discuss the derivation of the analytic properties of the cross-power spectrum estimator from multi-detector CMB anisotropy maps. The method is computationally convenient and it…
Search for non-Gaussianity in pixel, harmonic and wavelet space: compared and combined
Paolo Cabella, Frode Hansen, Domenico Marinucci +2
We present a comparison between three approaches to test non-Gaussianity of cosmic microwave background data. The Minkowski functionals, the empirical process method and the skewne…
The extended empirical process test for non-Gaussianity in the CMB, with an application to non-Gaussian inflationary models
Frode K. Hansen, Domenico Marinucci, Nicola Vittorio
In (Hansen et al. 2002) we presented a new approach for measuring non-Gaussianity of the Cosmic Microwave Background (CMB) anisotropy pattern, based on the multivariate empirical d…
Testing for non-Gaussianity of the cosmic microwave background in harmonic space: an empirical process approach
Frode K. Hansen, Domenico Marinucci, Paolo Natoli +1
We present a new, model-independent approach for measuring non-Gaussianity of the Cosmic Microwave Background (CMB) anisotropy pattern. Our approach is based on the empirical distr…
Non-iterative methods to estimate the in-flight noise properties of CMB detectors
P. Natoli, D. Marinucci, P. Cabella +2
We present a new approach for statistical inference on noise properties of CMB anisotropy data. We consider a Maximum Likelihood parametric estimator to recover the full dependence…