The Planck Lensing Map

COFFEE_KLATCH · Invited

Abstract

The high-resolution CMB fluctuations measured by the Planck satellite are perturbed by gravitational lensing, primarily sourced by the structure of the Universe on very large scales ($>$30Mpc comoving) at relatively high redshifts (z~2). We have exploited the distinct statistical signatures of this effect to construct a projected, full-sky map of the the large-scale dark matter distribution, as well as an estimate of the lensing potential power spectrum. This talk will detail our measurement, as well as its implications for cosmology.

Authors

  • Duncan Hanson

    McGill University Physics