A scalar field dark matter model and its role in the large scale structure formation in the Universe

Details A scalar field dark matter model and its role in the large scale structure formation in the Universe A scalar field dark matter model and its role in the large scale structure formation in the Universe

2011-12-21

arxiv.org/abs/1112.5201v2

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

15 pages, 6 figures, accepted for publication in Advances in Astronomy. arXiv admin note: substantial text overlap with arXiv:

Scientific paper

In this work we present a model of dark matter based on scalar-tensor theory of gravity. With this scalar field dark matter model we study the non-linear evolution of the large scale structures in the universe. The equations that govern the evolution of the scale factor of the universe are derived together with the appropriate Newtonian equations to follow the non-linear evolution of the structures. Results are given in terms of the power spectrum that gives quantitative information on the large-scale structure formation. The initial conditions we have used are consistent with the so called concordance $\Lambda$CDM model.

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