USING GLOBAL POSITIONING SYSTEMS TO TEST EXTENSIONS OF GENERAL RELATIVITY

• Type: Article in International Scientific Journal
• Date: 2011

Authors

Orfeu Bertolami (Author) FCUP; Jorge Paramos (Author) Other

Journal

Title: International Journal of Modern Physics D

Vol. 20

Pages: 1617-1641

ISSN: 0218-2718

Publisher: World Scientific

Indexing

ISI Web of Knowledge - 4 Citations

Scopus - 3 Citations

Scientific classification

FOS: Natural sciences > Physical sciences

Other information

Authenticus ID: P-002-P6X

DOI: 10.1142/s0218271811019451

Abstract (EN): We consider the feasibility of using the Galileo Navigation Satellite System to constrain possible extensions or modifications to general relativity, by assessing the impact of the related additions to the Newtonian potential and comparing with the available observables: the relative frequency shift and the time-delay of light propagation. We address the impact of deviations from General Relativity based on the parametrized Post-Newtonian parameters due to the presence of a cosmological constant, of a constant acceleration like the putative Pioneer anomaly, a Yukawa potential term due to massive scalar fields and a power-law potential term, which can arise from Ungravity or f(R) theories.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 25