Evidence for large-scale uniformity of physical laws

Details Evidence for large-scale uniformity of physical laws Evidence for large-scale uniformity of physical laws

Mar 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980apj...236l.105t&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor, vol. 236, Mar. 15, 1980, p. L105-L108.

Astronomy and Astrophysics

Astrophysics

28

Big Bang Cosmology, Constants, Galactic Radiation, Quasars, Red Shift, Absorption Spectra, Astrophysics, Background Radiation, Space-Time Functions, Universe

Scientific paper

Consideration is given to the coincidence of redshifts deduced from 21 cm and resonance transitions in absorbing gas detected in front of four quasi-stellar objects which results in stringent limits on the variation of the product of three physical constants both in time and space. It is found that (sigma-squared) (gp) (m/M), where gp is the proton gyromagnetic ratio, is spatially uniform, to a few parts in 10,000, throughout the observable universe. These limits are shown to be largely model independent, relying only upon the cosmological interpretation of redshifts and the isotropy of the 3 K background radiation. It is concluded that a quantity as complex as gp being uniform throughout most of spacetime, even in causally disjoint regions, suggests that all physical laws are globally invariant.

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