Astrophysics

   

Variable Model of the Fine-Structure Constant

Authors: Ioannis Iraklis Haranas

Recent evidence suggests that the fine-structure constant α=e2/h bar*c, a measure of the strength of the electromagnetic interaction between photons and electrons, is slowly increasing over cosmological timescales. High-resolution measurements of quasar spectra suggest that there has been a variation Δα/α =-0.72 ± 0.18x10-5 over the past 6-10 Gyr.To model this, we propose variability in the speed of light that produces a cosmological time |αdot/α| = 10-15 and 10-16 yr-1 at z = 3 which also agrees with the observational spectral data.

Comments: 8 pages, Romanian Astronomical Journal, Vol. 13, No. 1 pp. 25-30, 2003

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[v1] 16 Feb 2010

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