LINKING TESTS OF GRAVITY ON ALL SCALES: FROM THE STRONG-FIELD REGIME TO COSMOLOGY

Journal Article · Fri Mar 20 00:00:00 EDT 2015 · Astrophysical Journal

DOI:https://doi.org/10.1088/0004-637X/802/1/63· OSTI ID:22522533

Baker, Tessa ^[1]; Psaltis, Dimitrios ^[2]; Skordis, Constantinos ^[3]

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1. Astrophysics, Denys Wilkinson Building, Keble Road, University of Oxford, Oxford, OX1 3RH (United Kingdom)
2. Astronomy Department, University of Arizona, 933 North Cherry Avenue., Tucson, AZ 85721 (United States)
3. School of Physics and Astronomy, University of Nottingham, Nottingham NG7 2RD (United Kingdom)

The current effort to test general relativity (GR) 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 GR.

• OSTI ID: 22522533
• Journal Information: Astrophysical Journal, Vol. 802, Issue 1; Other Information: Country of input: International Atomic Energy Agency (IAEA); ISSN 0004-637X
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTROPHYSICS
COSMOLOGY AND ASTRONOMY
ASTROPHYSICS
COMPARATIVE EVALUATIONS
CORRECTIONS
COSMOLOGY
DIAGRAMS
GENERAL RELATIVITY THEORY
GRAVITATIONAL WAVES
LIMITING VALUES
NONLUMINOUS MATTER
RELICT RADIATION
SPACE
UNIVERSE