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[0912.0524] Beam profile sensitivity of the WMAP CMB power

Posted: December 06 2009
by Richard Lieu
This paper suggests that the WMAP beam may be wider than expected and that the systematic errors
on the CMB power spectrum may allow a much wider range of cosmological
models to be fitted than just LCDM.

The wider beam could also explain the lack of the expected SZ signal in
the WMAP W band, and could even be responsible (albeit in a subtle way) for the high degree of non-acoustic and non-foreground anisotropy on the 1-deg scale as reported in an ApJ paper of this month, 0904.2513.