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The Confrontation between general relativity and experiment: A 1998 update

Clifford M. Will
- pp 02
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TLDR
The status of experimental tests of general relativity and of theoreti- cal frameworks for analysing them are reviewed in this article, where the equivalence principle (EEP) is well supported by experiments such as the Eotvos experiment, tests of special relativity, and the gravitational redshift experiment.
Abstract
The status of experimental tests of general relativity and of theoreti- cal frameworks for analysing them are reviewed. Einstein's equivalence principle (EEP) is well supported by experiments such as the Eotvos experiment, tests of special relativity, and the gravitational redshift experiment. Future tests of EEP will search for new interactions aris- ing from unification or quantum gravity. Tests of general relativity have reached high precision, including the light deflection, the Shapiro time delay, the perihelion advance of Mercury, and the Nordtvedt ef- fect in lunar motion. Gravitational wave damping has been detected to half a percent using the binary pulsar, and new binary pulsar systems promise further improvements. When direct observation of gravita- tional radiation from astrophysical sources begins, new tests of general relativity will be possible.

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Citations
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The Confrontation Between General Relativity and Experiment

TL;DR: Tests of general relativity at the post-Newtonian level have reached high precision, including the light deflection, the Shapiro time delay, the perihelion advance of Mercury, the Nordtvedt effect in lunar motion, and frame-dragging.
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Dynamical mechanism for varying light velocity as a solution to cosmological problems

TL;DR: In this paper, a dynamical model for varying light velocity in cosmology is developed, based on the idea that there are two metrics in spacetime, one describing the standard gravitational vacuum, and the other describing the geometry through which matter fields propagate.
Journal ArticleDOI

The confrontation between general relativity and experiment

TL;DR: The experimental evidence for general relativity is reviewed in this article, where the equivalence principle and strong-field general relativity are discussed. But the equivalences are not considered in this paper.
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Navigation in curved space-time

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Observational Tests and Predictive Stellar Evolution

TL;DR: In this article, the authors compare 18 binary systems with precisely determined radii and masses from 23 to 11 M and stellar evolution models produced with the newly revised code TYCHO "Overshooting" and rotational mixing were suppressed in order to establish a baseline for isolating these and other hydrodynamic effects.
References
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Testing for gravitationally preferred directions using the lunar orbit.

TL;DR: It is found that certain retrograde planar orbits exhibit a resonant sensitivity to external perturbations linked to a fixed direction in space and there are strong a priori theoretical constraints on the conceivable magnitude of such an effect.