Planck 2013 results. XIX. The integrated Sachs-Wolfe effect

Understand

Based on CMB maps from the 2013 Planck Mission data release, this paper presents the detection of the ISW effect, i.e., the correlation between the CMB and large-scale evolving gravitational potentials.

• The significance of detection ranges from 2 to 4 sigma, depending on which method is used.
• We investigate three separate approaches, which cover essentially all previous studies, as well as breaking new ground.
• (i) Correlation of the CMB with the Planck reconstructed gravitational lensing potential (for the first time).