2 papers
gr-qc2005
The variation of the gravitational constant inferred from the Hubble diagram of Type Ia supernovae
E. Garcia-Berro, Yu. A. Kubyshin, P. Loren-Aguilar +1
We consider a cosmological model with a variable gravitational constant, G, based on a scalar-tensor theory. Using the recent observational data for the Hubble diagram of type Ia s…
astro-ph2003
Time variation of G and αwithin models with extra dimensions
P. Loren-Aguilar, E. Garcia-Berro, J. Isern +1
We derive the formulae for the time variation of the gravitational "constant" G and of the fine structure "constant" αin various models with extra dimensions and analyze their cons…