Was the fine-structure constant variable over cosmological time?

Details Was the fine-structure constant variable over cosmological time? Was the fine-structure constant variable over cosmological time?

Sep 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009el.....8769002t&link_type=abstract

Europhysics Letters, Volume 87, Issue 6, pp. 69002 (2009).

Physics

2

Scientific paper

Cosmological variation of the fine-structure constant (α) depends on the redshifts of quasars. Using the emission (absorption) systems in the spectra of distant quasars, we investigate the effect of the cosmology variability in the value of the fine-structure constant (α) dependent on the redshifts of quasars during the evolution of Universe. We obtain optical spectra of fine-structure transitions in [NeIII], [NeV], [OIII], [OI], and [SII] multiplets from a sample of 14 Seyfert 1.5 galaxies in the low-z range. 0.035

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