Weak lensing, shear and the Cosmic Virial Theorem in a model with a scale-dependent gravitational coupling

• Type: Article in International Scientific Journal
• Date: 1997

Authors

Bertolami, O (Author) Other

Journal

Title: General Relativity and Gravitation

Vol. 29

Pages: 851-857

ISSN: 0001-7701

Publisher: Springer Nature

Indexing

ISI Web of Knowledge - 2 Citations

Scopus - 1 Citation

Scientific classification

FOS: Natural sciences > Physical sciences

Other information

Authenticus ID: P-001-B4F

DOI: 10.1023/a:1018831232677

Abstract (EN): It is argued that, in models where the gravitational coupling is scale-dependent, predictions concerning weak gravitational lensing and shear are essentially similar to the ones derived from General Relativity. This is consistent with recent negative results of observations of the MS1224, CL2218 and A1689 systems aimimg to infer from those methods the presence of dark matter. It is shown, however, that the situation is quite different when an analysis based on the Cosmic Virial Theorem is concerned.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 7