Observational Evidence Against Birefringence Over Cosmological Distances

Details Observational Evidence Against Birefringence Over Cosmological Distances Observational Evidence Against Birefringence Over Cosmological Distances

1997-05-19

arxiv.org/abs/astro-ph/9705142v3

Phys.Rev.Lett.79:1801-1804,1997

Astronomy and Astrophysics

Astrophysics

This is a revision of a paper submitted to Phys Rev Letters. A number of modest changes have been made, including using more r

Scientific paper

10.1103/PhysRevLett.79.1801

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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