Abstract
The motivational tests of varying-fundamental physics constants with cosmological space–time represent plays an essential role in theoretical and experimental physics. One of the critical probes of this variation could be derived by comparing laboratory and astrophysical observations. Using a combination of Ritz and observed wavelengths of [Ni V] detected in the white dwarf star G191-B2B, we derived an upper bound on the effect of time variation of gravitational constant G˙/G=(−0.110±2.449)×10−15yr−1. The new limit for the temporal variation of G would provide a powerful tool for considering the arguments of unified theories.
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