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

被引：33

作者：

Garcia-Berro, Enrique

Kubyshin, Yuri

Loren-Aguilar, Pablo

Isern, Jordi

机构：

[1] Univ Politecn Cataluna, Dept Fis Aplicada, Escola Politecn Super Castelldefels, Castelldefels 08860, Spain

[2] Univ Politecn Cataluna, Inst Tecn Energet, Edif ETSEIB, E-08028 Barcelona, Spain

[3] CSIC, Fac Ciencies, Inst Ciencies Espai, Bellaterra 08193, Spain

[4] Inst Estudis Espacials Catalunya, Barcelona 08034, Spain

来源：

INTERNATIONAL JOURNAL OF MODERN PHYSICS D | 2006年 / 15卷 / 08期

基金：

俄罗斯基础研究基金会;

关键词：

gravitational constant; supernovae; gravitational theory;

D O I：

10.1142/S0218271806008772

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

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

引用

页码：1163 / 1174

页数：12

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