Effect of rotation of the universe on the relative position angle of radiosources
Abstract
The effect of the spacetime curvature on the relative position angle Δ between the vector of radio waves and the direction of maximum elongation of an extended radiosource is studied during propagation of radiation from the source to the observer. A detailed analysis is carried out for the Gödel type cosmological model. It is found that the rotation of the Universe cannot induce a Birchtype anisotropy with Δ proportional to cos θ, where θ is the angle between the direction of the ray and the rotational axis. An anisotropy with Δ proportional to sin^{2} θ should be expected. In the case of a Gödeltype model, we have calculated the change in the eccentricity of the ellipse of the source image relative to the eccentricity of the real object.
 Publication:

Russian Physics Journal
 Pub Date:
 June 1992
 DOI:
 10.1007/BF00559167
 Bibcode:
 1992RuPhJ..35..495P