Weak lensing in non-statistically isotropic universes
Cosmology and Nongalactic Astrophysics
2015-06-30 v1
Abstract
The Bipolar Spherical Harmonics (BipoSH) form a natural basis to study the CMB two point correlation function in a non-statistically isotropic (non-SI) universe. The coefficients of expansion in this basis are a generalisation of the well known CMB angular power spectrum and contain complete information of the statistical properties of a non-SI but Gaussian random CMB sky. We use these coefficients to describe the weak lensing of CMB photons in a non-SI universe. Finally we show that the results reduce to the standard weak lensing results in the isotropic limit.
Cite
@article{arxiv.1506.08806,
title = {Weak lensing in non-statistically isotropic universes},
author = {Moumita Aich and Aditya Rotti and Tarun Souradeep},
journal= {arXiv preprint arXiv:1506.08806},
year = {2015}
}
Comments
16 pages