We consider the gravitational clustering of a multicomponent fluid in an expanding Newtonian universe, taking into account the mutual gravitational interactions of the medium. We obtained a set of exact and approximate solutions for two fluid components and for several fluid components: primordial hydrogen and helium or cosmological massive neutrinos of different masses and/or velocity distribution may be described by these solutions. The ratio between the two fluid perturbations, even if originally equal to unity, changes monotonically with time; this phenomenon leads to different epochs for nonlinear clustering that may be reflected into different epochs of galaxy formation
Can local fluctuations of a âquintessenceâ scalar field play a dynamical role in the gravitational c...
The evolution of inhomogeneities in a spherical collapse model is studied by expanding the Einstein ...
We investigate the transfer of power between different scales and the coupling of modes during the n...
Abstract. We inquire the phenomena of clustering of galaxies in an expanding universe from a theoret...
The gravitational clustering of collisionless particles in an expanding universe is modelled using s...
We derive the time evolution of the density contrast to all orders of perturbation theory, by solvin...
A Lagrangian relativistic approach to the non-linear dynamics of cosmological perturbations of an ir...
This article addresses some issues related to the statistical description of gravitating systems in ...
This article addresses some issues related to statistical description of gravitating systems in an e...
Gravitational perturbations in the expanding universe are analyzed within the framework of Newtonian...
The formation of galaxy clusters in hierarchically clustering universes is investigated by means of ...
The gravitational instability of an unbounded infinitely extended composite gravitating cloud system...
Can local fluctuations of a ‘‘quintessence’’ scalar field play a dynamical role in the gravitational...
We discuss the late-time evolution of the gravitational clustering in an expanding universe, based o...
The notion of adhesion has been advanced for the phenomenon of stabilization of large-scale structu...
Can local fluctuations of a âquintessenceâ scalar field play a dynamical role in the gravitational c...
The evolution of inhomogeneities in a spherical collapse model is studied by expanding the Einstein ...
We investigate the transfer of power between different scales and the coupling of modes during the n...
Abstract. We inquire the phenomena of clustering of galaxies in an expanding universe from a theoret...
The gravitational clustering of collisionless particles in an expanding universe is modelled using s...
We derive the time evolution of the density contrast to all orders of perturbation theory, by solvin...
A Lagrangian relativistic approach to the non-linear dynamics of cosmological perturbations of an ir...
This article addresses some issues related to the statistical description of gravitating systems in ...
This article addresses some issues related to statistical description of gravitating systems in an e...
Gravitational perturbations in the expanding universe are analyzed within the framework of Newtonian...
The formation of galaxy clusters in hierarchically clustering universes is investigated by means of ...
The gravitational instability of an unbounded infinitely extended composite gravitating cloud system...
Can local fluctuations of a ‘‘quintessence’’ scalar field play a dynamical role in the gravitational...
We discuss the late-time evolution of the gravitational clustering in an expanding universe, based o...
The notion of adhesion has been advanced for the phenomenon of stabilization of large-scale structu...
Can local fluctuations of a âquintessenceâ scalar field play a dynamical role in the gravitational c...
The evolution of inhomogeneities in a spherical collapse model is studied by expanding the Einstein ...
We investigate the transfer of power between different scales and the coupling of modes during the n...