Indication of Anisotropy in Electromagnetic Propagation over Cosmological Distances

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dc.creatorNodland, Borge
dc.creatorRalston, John P.
dc.date1997-04-20
dc.date.accessioned2026-07-07T10:57:49Z
dc.date.available2026-07-07T10:57:49Z
dc.descriptionWe report a systematic rotation of the plane of polarization of electromagnetic radiation propagating over cosmological distances. The effect is extracted independently from Faraday rotation, and found to be correlated with the angular positions and distances to the sources. Monte Carlo analysis yields probabilistic P-values of order 10^(-3) for this to occur as a fluctuation. A fit yields a birefringence scale of order 10^(25) meters. Dependence on redshift z rules out a local effect. Barring hidden systematic bias in the data, the correlation indicates a new cosmological effect.
dc.description5 pages, 1 figure, ReVTeX. For more information, see http://www.cc.rochester.edu/college/rtc/Borge/aniso.html
dc.identifierhttps://arxiv.org/abs/astro-ph/9704196
dc.identifierhttp://arxiv.org/abs/astro-ph/9704196
dc.identifierPhys.Rev.Lett.78:3043-3046,1997
dc.identifierdoi:10.1103/PhysRevLett.78.3043
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/186886
dc.subjectAstrophysics
dc.subjectHigh Energy Physics - Phenomenology
dc.titleIndication of Anisotropy in Electromagnetic Propagation over Cosmological Distances
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