21 citations · 102 across the 18 of their papers we have counts for
18 papers
The Effects of Shear and Rotation Anisotropy Upon the Process of Gravitational Instability
A. Del Popolo, E. N. Ercan, M. Gambera
In this paper, we study the role of shear fields on the evolution of density perturbations embedded in a Friedmann flat background universe, by studying the evolution of a homogene…
Dynamical evolution of clusters of galaxies: the effect of high- velocity substructure clumps
A. Del Popolo, M. Gambera, E. N. Ercan
In the Cold Dark Matter (hereafter CDM) scenario even isolated density peaks contain a high fraction of small scale clumps having velocities larger than the average escape velocity…
About Some Regge-Like Relations for (stable) Black Holes
E. Recami, V. Tonin-Zanchin, A. Del Popolo +1
We associated, in a classical formulation of "strong gravity", hadron constituents with suitable stationary, axisymmetric solutions of some new Einstein-type equations supposed to…
Tidal torques dynamical friction and the structure of clusters of galaxies
A. Del Popolo, M. Gambera
We study the joint effect of tidal torques and dynamical friction on the collapse of density peaks solving numerically the equations of motion of a shell of barionic matter falling…
Non radial motions and the large scale structure of the Universe
A. Del Popolo, M. Gambera
We study the effect of non-radial motions on the mass function, the VDF and on the shape of clusters of galaxies using the model introduced in Del Popolo & Gambera (1998a,b; 1999).…
Migration of giant planets in planetesimal discs
A. Del Popolo, M. Gambera, E. Nihal Ercan
Planets orbiting a planetesimal circumstellar disc can migrate inward from their initial positions because of dynamical friction between planets and planetesimals. The migration ra…