Weak lensing B-modes on all scales as a probe of local isotropy
arXiv:1203.6029 · doi:10.1103/PhysRevD.87.043003
Abstract
This article derives a multipolar hierarchy for the propagation of the weak-lensing shear and convergence in a general spacetime. The origin of B-modes, in particular on large angular scales, is related to the local isotropy of space. Known results assuming a Friedmann-Lemaître background are naturally recovered. The example of a Bianchi I spacetime illustrates our formalism and its implications for future observations are stressed.
10 pages, 2 figures. Replaced to match published version
References in corpus (5)
Cited by in corpus (17)
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