MG11 
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Can extragalactic foregrounds explain the large-angle CMB anomalies?

The microwave sky shows unexpected features at the largest angular scales, among them the alignments of the dipole, quadrupole and octopole. Motivated by recent X-ray cluster studies, we investigate the possibility that local structures at the 100h^(-1)Mpc scale could be responsible for such correlations. These structures give rise to a local Rees-Sciama contribution as well as a Sunyaev-Zel'dovich contribution to the microwave sky that may amount to DeltaT/T ~ 10^(-5) at the largest angular scales respectively. We picture the effect of these foregrounds on the large-angle anomalies of the microwave sky.