@InProceedings{RamosCarRosCamMak:2008:TuExEv,
author = "Ramos, Fernando Manuel and Caretta, C. A. and Rosa, Reinaldo
Roberto and Campos Velho, Haroldo Fraga and Makler, M.",
affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and
Departamento de Astronom{\'{\i}}a, Universidad de Guanajuato and
{Instituto Nacional de Pesquisas Espaciais (INPE)} and
Departamento de Astronom{\'{\i}}a, Universidad de Guanajuato and
Coordena{\c{c}}{\~a}o de Cosmologia, Relatividade e
Astrof{\'{\i}}sica, Centro Brasileiro de Pesquisas
F{\'{\i}}sicas",
title = "Turbulence-like and Extreme Event Dynamics on the Formation of
Galaxy-sized Dark Matter Haloes",
year = "2008",
organization = "Conference on Computational Physics.",
abstract = "Although the theoretical understanding of the nonlinear
gravitational clustering has greatly advanced in the last decades,
in particular by the outstanding improvement on numerical N-body
simulations, the physics behind this process is not fully
elucidated. The main goal of this work is to investigate the
presence of turbulent-like and extreme event dynamics in the
formation of structures, galaxies and clusters of galaxies, by the
action of gravity alone. We use simulation data from the Virgo
Consortium (simulation box of side 239.5 h\−1 Mpc, and N =
2563 particles), in ten redshift snapshots (from z = 0 to 10).
From this we identify galaxy-sized and cluster-sized dark matter
haloes, by using a FoF algorithm and applying a boundedness
criteria, and study the gravitational potential energy spectra. We
find that the galaxy-sized haloes energy spectrum follows closely
a Kolmogorov power law, similar to the behaviour of dynamically
turbulent processes in fluids. We also find that energy histograms
are well described by a Generalized Extreme Value distribution.
Extreme events are those phenomena described by the tails of the
probability distribution, like the intense and intermittent bursts
of found in turbulent phenomena. These results mean that the
gravitational clustering of dark matter may admit a turbulent-like
representation.",
conference-location = "Ouro Preto",
conference-year = "5 - 9 Aug.",
isbn = "2-914771-56-8",
urlaccessdate = "21 jan. 2021"
}