Constraints on the Long-Range Properties of Gravity from Weak Gravitational Lensing

  title={Constraints on the Long-Range Properties of Gravity from Weak Gravitational Lensing},
  author={Martin White and Christopher S. Kochanek},
  journal={The Astrophysical Journal},
Weak gravitational lensing provides a means of testing the long-range properties of gravity. Current measurements are consistent with standard Newtonian gravity and inconsistent with substantial modifications on megaparsec scales. The data allow long-range gravity to deviate from a 1/r potential only on scales where standard cosmology would use normal gravity, but be dominated by dark matter. Thus, abnormal gravity theories must introduce two fine-tuning scales (an inner scale to explain flat… 

Figures from this paper

Cosmological Tests of Gravity
Modications of general relativity provide an alternative explanation to dark energy for the observed acceleration of the universe. We review recent developments in modied gravity theories, focusing
CFHTLenS: testing the laws of gravity with tomographic weak lensing and redshift-space distortions
Dark energy may be the first sign of new fundamental physics in the Universe, taking either a physical form or revealing a correction to Einsteinian gravity. Weak gravitational lensing and galaxy
Observational Tests of Modified Gravity
Modifications of general relativity provide an alternative explanation to dark energy for the observed acceleration of the Universe. Modified gravity theories have richer observational consequences
Tests of Gravity from Imaging and Spectroscopic Surveys
Tests of gravity on large scales in the Universe can be made using both imaging and spectroscopic surveys. The former allow for measurements of weak lensing, galaxy clustering and cross correlations
Dark matter versus modifications of the gravitational inverse-square law: results from planetary motion in the Solar system
Dark matter or modifications of the Newtonian inverse-square law in the Solar system are studied with accurate planetary astrometric data. From extraperihelion precession and possible changes in the
Modification of the Newtonian Dynamics in ΛFRW-Cosmology an Alternative Approach to Dark Matter and Dark Energy
Modified Newtonian Dynamics (MoND) is an empirically motivated modification of Newtonian gravity at largest scales, to explain rotation curves of galaxies, as an alternative to nonbaryonic dark
Nonlocal effective gravitational field equations and the running of Newton's constant G
Non-perturbative studies of quantum gravity have recently suggested the possibility that the strength of gravitational interactions might slowly increase with distance. Here a set of generally
Current status of weak gravitational lensing
Abstract Weak gravitational lensing of distant galaxies by foreground structures has proven to be a powerful tool to study the mass distribution in the universe. Nowadays, attention has shifted from
Weak Lensing of Galaxy Clusters in Modified Newtonian Dynamics
We study weak gravitational lensing of galaxy clusters in terms of the MOND (modified Newtonian dynamics) theory. We calculate shears and convergences of background galaxies for three clusters
A Parameterized Post-Friedmann Framework for Modified Gravity
We develop a parametrized post-Friedmann (PPF) framework which describes three regimes of modified gravity models that accelerate the expansion without dark energy. On large scales, the evolution of


Detection of weak gravitational lensing distortions of distant galaxies by cosmic dark matter at large scales
The detection of cosmic shear on angular scales of up to half a degree is reported using 145,000 galaxies and along three separate lines of sight and it is found that the dark matter is distributed in a manner consistent with either an open universe, or a flat universe that is dominated by a cosmological constant.
We study gravitational lensing by clusters of galaxies in the context of the generic class of unconventional gravity theories which describe gravity in terms of a metric and one or more scalar fields
Weak gravitational lensing of distant galaxies
We analyze the two-point statistics of the gravitationally induced ellipticities of distant images whick provide a direct probe of the mass fluctuation spectrum P(k). The analysis extends previous
Lensing at cosmological scales: a test of higher dimensional gravity
Recent developments in gravitational lensing astronomy have paved the way to genuine mappings of the gravitational potential at cosmological scales. We stress that comparing these data with
Can galactic observations be explained by a relativistic gravity theory?
The possibility for any gravity theory to explain the behavior of galaxies without dark matter is rather improbable and a general expression for the metric to order is derived.
Evidence against dissipation-less dark matter from observations of galaxy haloes
THERE are two different types of missing (dark) matter: the unseen matter needed to explain the high rotation velocities of atomic hydrogen in the outer parts of spiral galaxies1,2, and the much
The correlation function of galaxy ellipticities produced by gravitational lensing
The correlation of galaxy ellipticities produced by gravitational lensing is calculated as a function of the power spectrum of density fluctuations in the universe by generalizing an analytical
The formation of cosmic structure with modified newtonian dynamics
I consider the growth of inhomogeneities in a low-density, baryonic, vacuum energy-dominated universe in the context of modified Newtonian dynamics (MOND). I first write down a two-field
TOPICAL REVIEW: Astrophysical constraints on modifying gravity at large distances
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
The observational case for a low-density Universe with a non-zero cosmological constant
OBSERVATIONS are providing progressively tighter constraints on cosmological models advanced to explain the formation of large-scale structure in the Universe. These include recent determinations of