Linking Tests of Gravity On All Scales: from the Strong-Field Regime to Cosmology

Abstract

The current effort to test General Relativity employs multiple disparate formalisms for different observables, obscuring the relations between laboratory, astrophysical and cosmological constraints. To remedy this situation, we develop a parameter space for comparing tests of gravity on all scales in the universe. In particular, we present new methods for linking cosmological large-scale structure, the Cosmic Microwave Background and gravitational waves with classic PPN tests of gravity. Diagrams of this gravitational parameter space reveal a noticeable untested regime. The untested window, which separates small-scale systems from the troubled cosmological regime, could potentially hide the onset of corrections to General Relativity.

15+6 pages; 2 figures. Figures available online at http://users.ox.ac.uk/~lady2729/Welcome.html . Updated to match published version -- minor textual changes only

References in corpus (11)

• X-ray Properties of Black-Hole Binaries
• Gravity Probe B: Final Results of a Space Experiment to Test General Relativity
• Tests of the Gravitational Inverse-Square Law below the Dark-Energy Length Scale
• Event-horizon-scale structure in the supermassive black hole candidate at the Galactic Centre
• Jet Launching Structure Resolved Near the Supermassive Black Hole in M87
• Relativistic X-ray Lines from the Inner Accretion Disks Around Black Holes
• The Black Hole Mass, Stellar M/L, and Dark Halo in M87
• Cluster Constraints on f(R) Gravity
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• The effect of the motion of the Sun on the light-time in interplanetary relativistic experiments

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