385 citations · 1.7k across the 46 of their papers we have counts for
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Imprints of local lightcone projection effects on the galaxy bispectrum IV: Second-order vector and tensor contributions
Sheean Jolicoeur, Alireza Allahyari, Chris Clarkson +3
The galaxy bispectrum on scales around and above the equality scale receives contributions from relativistic effects. Some of these arise from lightcone deformation effects, which…
Fundamental Physics with the Square Kilometre Array
A. Weltman, P. Bull, S. Camera +50
The Square Kilometre Array (SKA) is a planned large radio interferometer designed to operate over a wide range of frequencies, and with an order of magnitude greater sensitivity an…
Weak lensing distortions beyond shear
Pierre Fleury, Julien Larena, Jean-Philippe Uzan
When a luminous source is extended, its distortions by weak gravitational lensing are richer than a mere combination of magnification and shear. In a recent work, we proposed an el…
Cosmic convergence and shear with extended sources
Pierre Fleury, Julien Larena, Jean-Philippe Uzan
The standard theory of weak gravitational lensing relies on the approximation that light beams are infinitesimal. Our recent work showed that the finite size of sources, and the as…
Is the local Hubble flow consistent with concordance cosmology?
Carlos A. P. Bengaly, Julien Larena, Roy Maartens
Yes. In a perturbed Friedmann model, the difference of the Hubble constants measured in two rest-frames is independent of the source peculiar velocity and depends only on the relat…