# Using large-scale structure data and a halo model to constrain generalized dark matter

@article{Thomas2019UsingLS, title={Using large-scale structure data and a halo model to constrain generalized dark matter}, author={Daniel B. Thomas and M. I. Kopp and Katarina Markovivc}, journal={Monthly Notices of the Royal Astronomical Society}, year={2019} }

Constraints on the properties of the cosmological dark matter have previously been obtained in a model-independent fashion using the generalized dark matter (GDM) framework. Here we extend that work in several directions: We consider the inclusion of WiggleZ matter power spectrum data (MPS), and show that this improves the constraints on the two perturbative GDM parameters, $c^2_\mathrm{ s}$ and $c^2_\text{vis}$, by a factor of 3, for a conservative choice of wavenumber range. A less…

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## References

SHOWING 1-10 OF 118 REFERENCES

Extensive investigation of the generalized dark matter model

- Physics
- 2016

The Cold Dark Matter (CDM) model, wherein the dark matter is treated as a pressureless perfect fluid, provides a good fit to galactic and cosmological data. With the advent of precision cosmology, it…

Constraining dark matter properties with Cosmic Microwave Background observations

- Physics
- 2016

We examine how the properties of dark matter, parameterised by an equation of state parameter $w$ and two perturbative Generalised Dark Matter (GDM) parameters $c^2_s$ (the sound speed) and…

Testing the Warm Dark Matter paradigm with large-scale structures

- Physics
- 2011

We explore the impact of a LWDM cosmological scenario on the clustering properties of large-scale structure in the Universe. We do this by extending the halo model. The new development is that we…

Non-linear evolution of cosmological structures in warm dark matter models

- Physics
- 2011

The dark energy dominated warm dark matter (WDM) model is a promising alternative cosmological scenario. We explore large-scale structure formation in this paradigm. We do this in two different ways:…

Structure Formation with Generalized Dark Matter

- Physics
- 1998

The next generation of cosmic microwave background (CMB) experiments, galaxy surveys, and high-redshift observations can potentially determine the nature of the dark matter observationally. With this…

Dark sectors of the Universe: A Euclid survey approach

- Physics
- 2016

In this paper we study the consequences of relaxing the hypothesis of the pressureless nature of the dark matter component when determining constraints on dark energy. To this aim we consider simple…

Conservative Constraints on Early Cosmology: an illustration of the Monte Python cosmological parameter inference code

- Physics
- 2012

Models for the latest stages of the cosmological evolution rely on a less solid theoretical and observational ground than the description of earlier stages like BBN and recombination. As suggested in…

Cosmological bounds on the equation of state of dark matter

- Physics
- 2005

In this exploratory study, we investigate the bounds on the equation of state of dark matter. Modeling dark matter as a fluid component, we take into account both positive and negative fixed…

A fitting formula for the non-Gaussian contribution to the lensing power spectrum covariance

- Physics
- 2010

Context. Weak gravitational lensing is one of the most promising tools to investigate the equation-of-state of dark energy. In order to obtain reliable parameter estimations for current and future…

Constraints on Warm Dark Matter from Cosmological Reionization

- Physics
- 2001

We study the constraints that high-redshift structure formation in the universe places on warm dark matter (WDM) dominated cosmological models. We modify the extended Press-Schechter formalism to…