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arxiv: astro-ph/9705142 · v3 · submitted 1997-05-19 · 🌌 astro-ph

Observational Evidence Against Birefringence Over Cosmological Distances

classification 🌌 astro-ph
keywords radioclaimedcosmologicalbirefringencedatadistanceseffectevidence
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We show that recent radio and optical observations of polarized radiation from well-resolved high redshift quasars and radio galaxies rule out the cosmological rotation of the plane of polarization claimed recently by Nodland and Ralston. A least squares fit to the radio data has a slope only 2% of their claimed effect.

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