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Can extragalactic foregrounds explain the large-angle CMB anomalies?

Presented at Berlin (Germany), 23-29 juillet 2006
Publication date2006

We address the effect of an extended local foreground on the low-l anomalies found in the CMB. Recent X-ray catalogues point us to the existence of very massive superstructures at the 100 h^(-1) Mpc scale that contribute significantly to the dipole velocity profile. Being highly non-linear, these structures provide us a natural candidate to leave an imprint on the CMB sky via a local Rees-Sciama effect. We show that the Rees-Sciama effect of local foregrounds can induce CMB anisotropy of DeltaT/T ~ 10^(-5) and we analyse its impact on multipole power as well as the induced phase pattern on largest angular scales.

Citation (ISO format)
RAKIC, A., RASANEN, Syksy, SCHWARZ, Dominik J. Can extragalactic foregrounds explain the large-angle CMB anomalies? In: 11th Marcel Grossmann Meeting on recent developments in theoretical and experimental general relativity, gravitation, and relativistic field theory. Berlin (Germany). [s.l.] : [s.n.], 2006. p. 1647–1652.
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  • PID : unige:4603

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