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New Physics In Clusters of Galaxy: A New Dark Matter Component ?
Marian Douspis
The latest cosmological observables analyses seem to converge to a concordant view of the cosmological model: namely the power law Lambda-CDM. The recent WMAP results comfort this…
Initial power spectrum shape
Marian Douspis
Mainly used to set constraints on cosmological parameters, CMB anisotropies can give information on primordial universe. Unfortunately, initial conditions and late time cosmology a…
The CMB temperature power spectrum from an improved analysis of the Archeops data
M. Tristram, G. Patanchon, J. F. Macias-Perez +47
We present improved results on the measurement of the angular power spectrum of the Cosmic Microwave Background (CMB) temperature anisotropies using the data from the last Archeops…
Evidence for new physics from clusters ?
Alain Blanchard, Marian Douspis
The abundance of local clusters is a traditional way to derive the amplitude of matter fluctuations. In the present work, by assuming that the observed baryon content of clusters i…
A new search for features in the primordial power spectrum
Domenico Tocchini-Valentini, Marian Douspis, Joseph Silk
We develop a new approach toward a high resolution non-parametric reconstruction of the primordial power spectrum using WMAP cosmic microwave background temperature anisotropies th…