507 citations · 2.5k across the 15 of their papers we have counts for
4 papers · 1 filter
Constraining topology in harmonic space
M. Kunz, N. Aghanim, L. Cayon +3
We consider several ways to test for topology directly in harmonic space by comparing the measured a_lm with the expected correlation matrices. Two tests are of a frequentist natur…
Non-Gaussianity: Comparing wavelet and Fourier based methods
N. Aghanim, M. Kunz, P. G. Castro +1
In the context of the present and future Cosmic Microwave Background (CMB) experiments, going beyond the information provided by the power spectrum has become necessary in order to…
Using the COBE/DMR data as a test-bed for normality assessments
N. Aghanim, O. Forni, F. R. Bouchet
A very important property of a statistical distribution is to know whether it obeys Gaussian statistics or not. On the one hand, it is of paramount importance in the context of CMB…
Searching for non-gaussianity: Statistical tests
O. Forni, N. Aghanim
Non-gaussianity represents the statistical signature of physical processes such as turbulence. It can also be used as a powerful tool to discriminate between competing cosmological…