Electrodynamic effect of anisotropic expansions in the Universe

Abstract

In the presence of anisotropic cosmic expansions at global or local scale the equations of electrodynamics in expanding space-time are modified and presented here. A new effect should arise in regions of local anisotropic expansion in a cosmologically isotropic background. These regions should naturally exist, being connected with scales decoupling from the Hubble flow. Possible observational consequences of this effect are suggested. In particular, I predict the appearance or variation of the polarization of electromagnetic radiation coming from or passing through these regions. This effect is observable and possibly already observed in the polarization of quasars.

5 pages, no figures; typos corrected, reference added, matches the published version

References in corpus (5)

• The Axis of Evil revisited
• Bianchi Model CMB Polarization and its Implications for CMB Anomalies
• Anisotropy in the Hubble constant as observed in the HST Extragalactic Distance Scale Key Project results
• Anisotropic dark energy and ellipsoidal universe
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Cited by in corpus (8)

• Is the Observable Universe Consistent with the Cosmological Principle?
• Constraints on anisotropic cosmic expansion from supernovae
• Polarization Alignment in JVAS/CLASS flat spectrum radio surveys
• Evidence of isotropy at large-scale from polarizations of radio sources
• Cosmological-scale coherent orientations of quasar optical polarization vectors in the $Planck$ era Investigating the Galactic dust contamination scenario
• A mechanism to explain Galaxy alignment over a range of scales
• High-derivatives and massive electromagnetic models in the Lemaitre-Tolman-Bondi spacetime
• Electrodynamics in an LTB scenario