Gravity tests and the Pioneer anomaly

Details Gravity tests and the Pioneer anomaly Gravity tests and the Pioneer anomaly

Publishing date

2005-11-04

URL

arxiv.org/abs/gr-qc/0511020v1

Journals

in "Laser, clocks and drag-free: exploration of relativistic gravity in space", Eds. H. Dittus, C.Lammerzahl and S. Turyshev,

Science

Astronomy and Astrophysics

Field

Astrophysics

SubField

General Relativity and Quantum Cosmology

Additional info

10 pages

Type

Scientific paper

Abstract

Experimental tests of gravity performed in the solar system show a good agreement with general relativity. The latter is however challenged by the Pioneer anomaly which might be pointing at some modification of gravity law at ranges of the order of the size of the solar system. We introduce a metric extension of general relativity which, while preserving the equivalence principle, modifies the coupling between curvature and stress tensors and, therefore, the metric solution in the solar system. The ``post-Einsteinian extension'' replaces Newton gravitation constant by two running coupling constants, which depend on the scale and differ in the sectors of traceless and traced tensors, so that the metric solution is characterized by two gravitation potentials. The extended theory has the capability to preserve compatibility with gravity tests while accounting for the Pioneer anomaly. It can also be tested by new experiments or, maybe, by having a new look at data of already performed experiments.

Affiliated with

Also associated with

No associations

Rating

Gravity tests and the Pioneer anomaly does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Gravity tests and the Pioneer anomaly, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Gravity tests and the Pioneer anomaly will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-57862