Weak lensing of the CMB

Details Weak lensing of the CMB Weak lensing of the CMB

2009-11-03

arxiv.org/abs/0911.0612v1

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

21 pages, 5 figures. Invited review for GRG special issue on gravitational lensing

Scientific paper

The cosmic microwave background (CMB) represents a unique source for the study of gravitational lensing. It is extended across the entire sky, partially polarized, located at the extreme distance of z=1100, and is thought to have the simple, underlying statistics of a Gaussian random field. Here we review the weak lensing of the CMB, highlighting the aspects which differentiate it from the weak lensing of other sources, such as galaxies. We discuss the statistics of the lensing deflection field which remaps the CMB, and the corresponding effect on the power spectra. We then focus on methods for reconstructing the lensing deflections, describing efficient quadratic maximum-likelihood estimators and delensing. We end by reviewing recent detections and observational prospects.

Affiliated with

Also associated with

No associations

Rating

Weak lensing of the CMB does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Weak lensing of the CMB, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Weak lensing of the CMB will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-256859