The variation of the gravitational constant inferred from the Hubble diagram of Type Ia supernovae

Thumbnail Image

Date

Authors

Journal Title

Journal ISSN

Volume Title

Publisher

Abstract

Description

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 supernovae (SNeIa) we find a phenomenological expression describing the variation of G. The corresponding variation of the fine structure constant αwithin multidimensional theories is also computed and is shown not to support known constraints on Δα/ α.
LaTeX, 12 pages, 3 figs. In the replaced version figures are added and some errors are corrected

Keywords

General Relativity and Quantum Cosmology

Citation

URI

http://salesiana.dossiersoluciones.com/handle/123456789/182467

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/gr-qc/0512164
 http://arxiv.org/abs/gr-qc/0512164
 Int.J.Mod.Phys.D15:1163-1174,2006
 doi:10.1142/S0218271806008772

Collections

arXiv