Power asymmetry in WMAP and Planck temperature sky maps as measured by a local variance estimator

ASTROPHYSICAL JOURNAL LETTERS, no. 2 (2014)

Cited: 120|Views22

Abstract

We revisit the question of hemispherical power asymmetry in the WMAP and Planck temperature sky maps by measuring the local variance over the sky and on disks of various sizes. For the 2013 Planck sky map we find that none of the 1000 available isotropic Planck "Full Focal Plane" simulations have a larger variance asymmetry than that esti...More

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