5 papers
Non radial motions and the shapes and the abundance of clusters of galaxies
A. Del Popolo, M. Gambera
We study the effect of non-radial motions on the mass function, the velocity dispersion function (hereafter VDF) and on the shape of clusters of galaxies using the model introduced…
Non-local bias and the problem of large-scale power in the Standard Cold Dark Matter model
A. Del Popolo, Y. Takahashi, H. Kiuchi +1
We study the effect of non-radial motions, originating from the gravitational interaction of the quadrupole moment of a protogalaxy with the tidal field of the matter of the neighb…
The effect of non-radial motions on the CDM model predictions
A. Del Popolo, M. Gambera
In this paper we show how non-radial motions, originating from the tidal interaction of the irregular mass distribution within and around protoclusters, can solve some of the probl…
The statistics of the gravitational field arising from an inhomogenous system of particles
A. Del Popolo, M. Gambera, x
In this paper we extend Chandrasekhar and von Neumann's analysis of the statistics of the gravitational field to systems in which particles (e.g. stars, galaxies) are not homogeneo…
Tidal torques and the clusters of galaxies evolution
A. Del Popolo, M. Gambera
We study the effect of tidal torques on the collapse of density peaks through the equations of motion of a shell of barionic matter falling into the central regions of a cluster of…