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  Superhorizon fluctuations from CMB polarization spectrum TE

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The CMB cross-corelation polarization spectrum TE measured by the Planck and WMAP satellites shows a non-zero negative signal between multipoles l = 30 ... 200. a) Is this evidence for superhorizon fluctuations in the CMB? b) Can this effect be attributed to early cosmic inflation?

asked Mar 27, 2023 in Astronomy by rhkail (5 points) [ no revision ]

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