Polarization-temperature correlation from a primordial magnetic field

1997/07/09 by Evan Scannapieco, Evan S. Scannapieco, Pedro G. Ferreira · 8 citations
Earth and Planetary Sciences · Physics and Astronomy · #Cosmology and Gravitation Theories #Geophysics and Gravity Measurements #Solar and Space Plasma Dynamics #astro-ph

paper · pdf · doi:10.1103/physrevd.56.r7493

published as Phys.Rev.D56:7493-7497,1997 · 3 figures

arxiv created 1997/07/09 · openalex publication_date 1997/12/15 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We propose a new method for constraining a primordial homogeneous magnetic field with the cosmic microwave background. Such a field will induce an observable parity odd cross correlation between the polarization anisotropy and the temperature anisotropy by Faraday rotation. We analyze the necessary experimental features to match, and improve, current constraints of such a field by measuring this correlation.

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