# Cosmological constraints on the gravitational interactions of matter and dark matter

@article{Bai2015CosmologicalCO, title={Cosmological constraints on the gravitational interactions of matter and dark matter}, author={Yang Bai and Jordi Salvado and Ben A. Stefanek}, journal={Journal of Cosmology and Astroparticle Physics}, year={2015}, volume={2015}, pages={029 - 029} }

Although there is overwhelming evidence of dark matter from its gravitational interaction, we still do not know its precise gravitational interaction strength or whether it obeys the equivalence principle. Using the latest available cosmological data and working within the framework of ΛCDM, we first update the measurement of the multiplicative factor of cosmology-relevant Newton's constant over the standard laboratory-based value and find that it is consistent with one. In general relativity…

## 16 Citations

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- PhysicsJournal of Cosmology and Astroparticle Physics
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Constraints on the cosmological concordance model parameters from observables at different redshifts are usually obtained using the locally measured value of the gravitational constant GN . Here we…

## References

SHOWING 1-10 OF 55 REFERENCES

### Cosmological effects of coupled dark matter

- Physics
- 2013

Many models have been studied that contain more than one species of dark matter and some of these couple the Cold Dark Matter (CDM) to a light scalar field. In doing this we introduce additional long…

### Structure formation in a string-inspired modification of the cold dark matter model

- Physics
- 2004

Motivated in part by string theory, we consider the idea that the standard {lambda}CDM cosmological model might be modified by the effect of a long-range scalar dark matter interaction. The variant…

### Dark matter and the equivalence principle.

- PhysicsScience
- 1993

The astrophysical and cosmological implications of a long-range force coupled only to the dark matter are discussed and rather tight constraints on its strength are found.

### Cosmological Perturbation Theory in the Synchronous and Conformal Newtonian Gauges

- Physics
- 1995

This paper presents a systematic treatment of the linear theory of scalar gravitational perturbations in the synchronous gauge and the conformal Newtonian (or longitudinal) gauge. It differs from…

### Experimental limits on any long range nongravitational interaction between dark matter and ordinary matter.

- PhysicsPhysical review letters
- 1993

Much of the mass of the Universe is thought to reside in some as yet unidentified dark matter. This view is based on the analysis of trajectories of luminous «tracers» that map out the local…

### Modern Cosmology

- Physics
- 2004

The last five years have seen the coming of age of Modern Cosmology, a mature branch of science based on the Big Bang theory and the Inflationary Paradigm. In particular, we can now define rather…

### Structure formation with a long-range scalar dark matter interaction

- Physics
- 2005

Numerical simulations show that a long-range scalar interaction in a single species of massive dark matter particles causes voids between the concentrations of large galaxies to be more nearly empty,…

### Cosmological constraints on Newton's constant

- Physics
- 2005

We present cosmological constraints on deviations of Newton's constant at large scales without specifying a model, analyzing latest cosmic microwave background (CMB) anisotropies and primordial…

### Probing the Friedmann equation during recombination with future cosmic microwave background experiments

- Physics, Materials Science
- 2003

We show that by combining measurements of the temperature and polarization anisotropies of the cosmic microwave background (CMB), future experiments will tightly constrain the expansion rate of the…

### Growth of perturbations in dark matter coupled with quintessence

- Physics
- 2005

We consider the evolution of linear perturbations in models with a nonminimal coupling between dark matter and scalar field dark energy. Growth of matter inhomogeneities in two examples of such…