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Astronomical measurements and constraints on the variability of fundamental constants |
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| Authors: | E. García-Berro J. Isern Y. A. Kubyshin |
| Affiliation: | (1) Departament de Física Aplicada, Universitat Politècnica de Catalunya, Escola Politècnica Superior de Castelldefels, Avda. del Canal Olí mpic s/n, 08860 Castelldefels, Spain;(2) Institut de Ciències de l’Espai, CSIC, Campus de la UAB, Facultat de Ciències, Torre C-5, 08193 Bellaterra, Spain;(3) Institut de Tècniques Energètiques, Universitat Politècnica de Catalunya, Avda. Diagonal, 647, Edif., PC, 08028 Barcelona, Spain;(4) Skobeltsyn Institute of Nuclear Physics, Moscow State University, 119992 Moscow, Russia |
| Abstract: | We review the present status of how astronomical observations allow to constrain the evolution of fundamental constants of nature. The main observational constraints on the variation of the gravitational constant, on the fine structure constant and on the proton-to-electron mass ratio are reviewed. We also elaborate on some theoretical schemes which naturally lead to such variations. |
| Keywords: | Gravitation Cosmology: miscellaneous Cosmology: theory Cosmology: early Universe |
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