Astronomy and Astrophysics – Astrophysics
Scientific paper
Dec 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006lnea....2..237g&link_type=abstract
Lecture Notes and Essays in Astrophysics, vol. 2, p. 237-248.
Astronomy and Astrophysics
Astrophysics
Dark Matter, Large Structure Of Matter, Cosmology, Matter Halos, Multifractal Structure
Scientific paper
On the one hand, the large scale structure of matter is arguably scale invariant, and, on the other hand, halos are recognized as prominent features of that structure. Therefore, we propose to model the dark matter distribution as sets of fractal distributions of halos. This model relies on the concept of multifractal model as the most general scaling distribution, and on a plausible notion of halo as a mass concentration in a multifractal. We show that an analysis, according to this picture, of distributions produced in cosmological N-body simulations gives convincing evidence of scale invariance and actually yields a definite dimension for halos of similar mass, which grows as the mass diminishes.
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