Stellar footprints of a variable G

Details Stellar footprints of a variable G Stellar footprints of a variable G

1999-05-14

arxiv.org/abs/gr-qc/9905045v1

Mod.Phys.Lett. A14 (1999) 1007-1014

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

This essay received Honorable Mention in the 1999 Essay Competition of the Gravity Research Foundation

Scientific paper

10.1142/S0217732399001061

Theories with varying gravitational constant $G$ have been studied since long time ago. Among them, the most promising candidates as alternatives of the standard General Relativity are known as scalar-tensor theories. They provide consistent descriptions of the observed universe and arise as the low energy limit of several pictures of unified interactions. Therefore, an increasing interest on the astrophysical consequences of such theories has been sparked over the last few years. In this essay we comment on two methodological approaches to study evolution of astrophysical objects within a varying-$G$ theory, and the particular results we have obtained for boson and white dwarf stars.

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