Phenomenological constraints on a scale-dependent gravitational coupling

Abstract

We investigate the astrophysical and cosmological implications of the recently proposed idea of a running gravitational coupling on macroscopic scales. We find that when applied to the rotation curves of galaxies, their flatness requires still the presence of dark matter. Bounds on the variation of the gravitational coupling from primordial nucleosynthesis, change of the period of binary pulsars, gravitational lensing and the cosmic virial theorem are analysed.

File macro (espcrc2.sty) attached at the end

References in corpus (4)

• Determination of the Hubble constant from observations of Cepheid variables in the galaxy M96
• Do We Live in the Center of the World?
• Effects of the Running Gravitational Constant on the Amount of Dark Matter
• Do the Age of the Universe and the Hubble Constant Depend on What Scale One Observes Them?

Cited by in corpus (6)

• Cosmology of the Planck Era from a Renormalization Group for Quantum Gravity
• Quantum Gravity at Astrophysical Distances?
• Running Newton Constant, Improved Gravitational Actions, and Galaxy Rotation Curves
• From Big Bang to Asymptotic de Sitter: Complete Cosmologies in a Quantum Gravity Framework
• On the Possibility of Quantum Gravity Effects at Astrophysical Scales
• Weak Lensing, Shear and the Cosmic Virial Theorem in a Model with a Scale-Dependent Gravitational Coupling