Large-Angle Anomalies in the CMB

Figure 7

A realization of the multiplicative model where the quadrupole (left column) and octopole (right column) exhibit an alignment similar to WMAP. (a): intrinsic (unmodulated) sky from a Gaussian random isotropic realization. (b) (single column): the quadrupolar modulation with 𝑓=−1 and 𝑤₂=−7 (see (21)) in the dipole direction. (c): the modulated sky of the observed CMB. (d): WMAP full-sky quadrupole and octopole. Adopted from [40].

(a)

(b)

(c)

(d)