Observational evidence against birefringence over cosmological distances

May, 1997
3 pages
Published in:
  • Phys.Rev.Lett. 79 (1997) 1801-1804
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Citations per year

1997200320092015202102468101214
Abstract: (arXiv)
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.