THE VARIATION OF THE GRAVITATIONAL CONSTANT INFERRED FROM THE HUBBLE DIAGRAM OF TYPE Ia SUPERNOVAE

2005/12/31 by E. Garcia-Berro, ENRIQUE GARCIA-BERRO, Yu. A. Kubyshin +5 · 2 citations
Physics and Astronomy · #Cosmology and Gravitation Theories #Gamma-ray bursts and supernovae #Particle physics theoretical and experimental studies #gr-qc

paper · pdf · doi:10.1142/s0218271806008772

published as Int.J.Mod.Phys.D15:1163-1174,2006 · LaTeX, 12 pages, 3 figs. In the replaced version figures are added and some errors are corrected

arxiv created 2006/03/02 · openalex publication_date 2006/08/01 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

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 α within multidimensional theories is also computed and is shown not to support known constraints on Δα/α.

Citations

• Mach's Principle and a Relativistic Theory of Gravitation
• The Case for a Positive Cosmological Lambda-term

Cited by

• Constraining a Possible Variation of G with Type Ia Supernovae
• Is Quintessence an Indication of a Time-Varying Gravitational Constant?