Differential measurements of the fundamental physical constants in the spectra of quasars

Details Differential measurements of the fundamental physical constants in the spectra of quasars Differential measurements of the fundamental physical constants in the spectra of quasars

Mar 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994arep...38..155l&link_type=abstract

Astronomy Reports, Volume 38, Issue 2, March 1994, pp.155-161

Astronomy and Astrophysics

Astronomy

Scientific paper

The possibility of making differential measurements of the fundamental physical constraints with an accuracy of 0.01 - 0.001% for early cosmological epochs, corresponding to the redshifts z <= 5 is considered. Such measurements can be performed for the fine structure constant α = e^2^/hc, using the resonant doublets ^23^Na I and ^27^A1 III observed in the absorption spectra of quasars.

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