133 citations · 335 across the 9 of their papers we have counts for
5 papers · 1 filter
A cross-correlation of WMAP and ROSAT
J. M. Diego, J. Silk, W. Sliwa
We cross-correlate the recent CMB WMAP 1 year data with the diffuse soft X-ray background map of ROSAT. We look for common signatures due to galaxy clusters (SZ effect in CMB, brem…
Filtering techniques for the detection of Sunyaev-Zel'dovich clusters in multifrequency CMB maps
D. Herranz, J. L. Sanz, M. P. Hobson +4
The problem of detecting Sunyaev-Zel'dovich (SZ) clusters in multifrequency CMB observations is investigated using a number of filtering techniques. A multifilter approach is intro…
Tests of Gaussianity of CMB maps
E. Martinez-Gonzalez, B. Barreiro, J. M. Diego +5
We study two different methods to test Gaussianity in CMB maps. One of them is based on the partition function and the other on the morphology of hot and cold spots. The partition…
Strong constraints on cosmology from galaxy clusters
J. M. Diego, E. Martinez-Gonzalez, J. L. Sanz +2
In this work we show how galaxy clusters can be used to discriminate among different cosmological models. We have used available X-ray & optical cluster data to constrain the cosmo…
Isotropic Wavelets: a Powerful Tool to Extract Point Sources from CMB Maps
L. Cayon, J. L. Sanz, R. B. Barreiro +6
It is the aim of this paper to introduce the use of isotropic wavelets to detect and determine the flux of point sources appearing in CMB maps. The most suited wavelet to detect po…