Weak lensing detection in CMB maps

Details Weak lensing detection in CMB maps Weak lensing detection in CMB maps

Dec 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998tx19.confe.304b&link_type=abstract

Abstracts of the 19th Texas Symposium on Relativistic Astrophysics and Cosmology, held in Paris, France, Dec. 14-18, 1998. Eds.:

Astronomy and Astrophysics

Astrophysics

Scientific paper

In inflationary scenario, the primary CMB anisotropies are expected to form a 2D Gaussian map. Its power spectrum is known to be only weakly affected by weak lensing effects, however, because of the mode couplings they create, lenses are expected to be detectable through induced non-Gaussian features. In this presentation I will describe the resulting connected four-point correlation function and the effects of lenses on the distribution function of the temperature peak shapes.

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