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Very weak lensing in the CFHTLS Wide: Cosmology from cosmic shear in the linear regime
L. Fu, E. Semboloni, H. Hoekstra +16
We present an exploration of weak lensing by large-scale structure in the linear regime, using the third-year (T0003) CFHTLS Wide data release. Our results place tight constraints…
Detection of Gravitational Lensing in the Cosmic Microwave Background
Kendrick M. Smith, Oliver Zahn, Olivier Dore
Gravitational lensing of the cosmic microwave background (CMB), a long-standing prediction of the standard cosmolgical model, is ultimately expected to be an important source of co…
The Cosmic Reionization History as Revealed by the CMB Doppler--21-cm Correlation
Marcelo A. Alvarez, Eiichiro Komatsu, Olivier Doré +1
We show that the epoch(s) of reionization when the ionization fraction of the universe is about half can be determined by correlating Cosmic Microwave Background (CMB) temperature…
Probing CMB Non-Gaussianity Using Local Curvature
O. Doré, S. Colombi, F. R. Bouchet
It is possible to classify pixels of a smoothed cosmic microwave background (CMB) fluctuation map according to their local curvature in ``hill'', ``lake'' and ``saddle'' regions. I…
Elliptical Beams in CMB Temperature and Polarization Anisotropy Experiments: An Analytic Approach
P. Fosalba, O. Doré, F. R. Bouchet
We present an analytic approach to the estimation of beam asymmetry effects in CMB temperature and linear polarization anisotropy experiments. We derive via perturbative expansions…
CMB Power Spectrum Estimation via Hierarchical Decomposition
O. Doré, L. Knox, A. Peel
We have developed a fast, accurate and generally applicable method for inferring the power spectrum and its uncertainties from maps of the cosmic microwave background (CMB) in the…