Astrophysical Constraints on Modifying Gravity at Large Distances

Abstract

Recently, several interesting proposals were made modifying the law of gravity on large scales, within a sensible relativistic formulation. This allows a precise formulation of the idea that such a modification might account for galaxy rotation curves, instead of the usual interpretation of these curves as evidence for dark matter. We here summarize several observational constraints which any such modification must satisfy, and which we believe make more challenging any interpretation of galaxy rotation curves in terms of new gravitational physics.

References added, submitted to Classical & Quantum Gravity

References in corpus (1)

• Ultralight Scalars and Spiral Galaxies

Cited by in corpus (28)

• Quantum Gravity in Everyday Life: General Relativity as an Effective Field Theory
• Quantum Gravity at Astrophysical Distances?
• Running Newton Constant, Improved Gravitational Actions, and Galaxy Rotation Curves
• Supersymmetric Large Extra Dimensions and the Cosmological Constant: An Update
• MSLED: A Minimal Supersymmetric Large Extra Dimensions Scenario
• Non-Newtonian behavior in weak field general relativity for extended rotating sources
• Odyssey: a Solar System Mission
• Constraints on the long-range properties of gravity from weak gravitational lensing
• Alpha-states in de Sitter space
• The Degree of Fine-Tuning in our Universe -- and Others
• Post-Einsteinian tests of linearized gravitation
• Quantum entanglement in de Sitter space from Stringy Axion: An analysis using $\alpha$ vacua
• OSS (Outer Solar System): A fundamental and planetary physics mission to Neptune, Triton and the Kuiper Belt
• Cosmology with Varying Constants
• Post-Einsteinian tests of gravitation
• Implications of a Scalar Dark Force for Terrestrial Experiments
• Electrostatic accelerometer with bias rejection for Gravitation and Solar System physics
• Non-parametric Dark Energy Degeneracies
• On the Possibility of Quantum Gravity Effects at Astrophysical Scales
• Potential--density pairs for spherical galaxies and bulges: the influence of scalar fields
• Potential-density pairs for axisymmetric galaxies: the influence of scalar fields
• A spherical scalar-tensor galaxy model
• Long range gravity tests and the Pioneer anomaly
• Unbiased acceleration measurements with an electrostatic accelerometer on a rotating platform
• On the Field Equations of Kaluza's Theory
• Distortions of Robertson-Walker metric in perturbative cosmology and interpretation as dark matter and cosmological constant
• Fake dark matter from retarded distortions
• Dark Matter Explanation from Quasi-Metric Gravity