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On the Large Scale CMB Polarization

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arxiv 1001.2650 v2 pith:EJR2X3A3 submitted 2010-01-15 astro-ph.CO gr-qchep-ph

On the Large Scale CMB Polarization

classification astro-ph.CO gr-qchep-ph
keywords largepolarizationscaleableacceptedanisotropyassumingaverage
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We discuss the large scale polarization of the cosmic microwave background induced by the anisotropy of the spatial geometry of our universe. Assuming an eccentricity at decoupling of about $0.64 10^{-2}$, we find an average large scale polarization $\Delta T_{pol}/ T_0 = (0.5 - 1.0) 10^{-6}$. We suggest that the fortcoming polarization data at large scales from Planck will be able to discriminate between our proposal and the generally accepted reionization scenario.

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Cited by 1 Pith paper

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. A Quantitative Framework for Testing the Hubble Tension in a Bianchi Type I Cosmological Background

    astro-ph.CO 2026-07 conditional novelty 6.0

    An analytic weak-shear Bianchi I calculation bounds the low-redshift luminosity-distance quadrupole to |Aμ(0.15)|≲2.4×10^-11 mag under BBN shear limits, ruling out shear-only resolution of the Hubble tension.