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Spherical collapse in quintessence models with zero speed of sound
Paolo Creminelli, Guido D'Amico, Jorge Noreña +2
We study the spherical collapse model in the presence of quintessence with negligible speed of sound. This case is particularly motivated for w<-1 as it is required by stability. A…
Full-sky lensing shear at second order
Francis Bernardeau, Camille Bonvin, Filippo Vernizzi
We compute the reduced cosmic shear up to second order in the gravitational potential without relying on the small angle or thin-lens approximation. This is obtained by solving the…
Sachs-Wolfe at second order: the CMB bispectrum on large angular scales
Lotfi Boubekeur, Paolo Creminelli, Guido D'Amico +2
We calculate the Cosmic Microwave Background anisotropy bispectrum on large angular scales in the absence of primordial non-Gaussianities, assuming exact matter dominance and exten…