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arXiv · 1901.08595

Weak Lensing Effect on CMB in the Presence of a Dipole Anisotropy

Abhineet Agarwal·Naveen K. Singh·Pankaj Jain·Prabhakar Tiwari
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Abstract

We investigate weak lensing effect on cosmic microwave background (CMB) in the presence of dipole anisotropy. The approach of flat-sky approximation is considered. We determine the functions $\sigma_0^2$ and $\sigma_2^2$ that appear in expressions of the lensed CMB power spectrum in the presence of a dipole anisotropy. We determine the correction to B-mode power spectrum which is found to be appreciable at low multipoles ($l$). However, the temperature and E-mode power spectrum are not altered significantly.

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Abhineet Agarwal, Naveen K. Singh, Pankaj Jain, Prabhakar Tiwari. 2019-01-24. Weak Lensing Effect on CMB in the Presence of a Dipole Anisotropy. https://doi.org/10.1140/epjc%2Fs10052-019-7085-9

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