Astrophysical and cosmological constraints on a scale-dependent gravitational coupling

• Type: Article in International Scientific Journal
• Date: 1996

Authors

Bertolami, O (Author) Other; GarciaBellido, J (Author) Other

Journal

Title: International Journal of Modern Physics D

Vol. 5

Pages: 363-373

ISSN: 0218-2718

Publisher: World Scientific

Indexing

ISI Web of Knowledge - 38 Citations

Scopus - 36 Citations

Scientific classification

FOS: Natural sciences > Physical sciences

Other information

Authenticus ID: P-007-2CJ

DOI: 10.1142/s0218271896000230

Abstract (EN): We study the phenomenological consequences of the recently proposed idea of a running gravitational coupling on macroscopic scales. When applied to the rotation curves of galaxies, we find that their flatness requires the presence of baryonic dark matter. Bounds on the variation of the gravitational coupling from primordial nucleosynthesis and the change of the period of binary pulsars are analysed. We also study constraints on the variations of G with scale from gravitational lensing and the cosmic virial theorem, as well as briefly discuss the implications of such a scenario for structure formation.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 11