Volume 98, Number 4, May 2012
|Number of page(s)||6|
|Section||Geophysics, Astronomy and Astrophysics|
|Published online||25 May 2012|
A non-perturbative Kolmogorov turbulence approach to the cosmic web structure
IDR, ETSI Aeronáuticos, Universidad Politécnica de Madrid - Pza. Cardenal Cisneros 3, E-28040 Madrid, Spain, EU
Accepted: 23 April 2012
The Kolmogorov approach to turbulence is applied to the Burgers turbulence in the stochastic adhesion model of large-scale structure formation. As the perturbative approach to this model is unreliable, here a new, non-perturbative approach, based on a suitable formulation of Kolmogorov's scaling laws, is proposed. This approach suggests that the power-law exponent of the matter density two-point correlation function is in the range 1–1.33, but it also suggests that the adhesion model neglects important aspects of the gravitational dynamics.
PACS: 98.65.Dx – Superclusters; large-scale structure of the Universe (including voids, pancakes, great wall, etc.) / 47.27.-i – Turbulent flows / 05.45.Df – Fractals
© EPLA, 2012
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