267 citations · 2.1k across the 89 of their papers we have counts for
7 papers · 1 filter
Surface Density of dark matter haloes on galactic and cluster scales
A. Del Popolo, V. Cardone, G. Belvedere
In this paper, in the framework of the secondary infall model, the correlation between the central surface density and the halo core radius of galaxy, and cluster of galaxies, dark…
Spherical collapse model with shear and angular momentum in dark energy cosmologies
A. Del Popolo, F. Pace, J. A. S. Lima
We study, for the first time, how shear and angular momentum modify typical parameters of the spherical collapse model, in dark energy dominated universes. In particular, we study…
Newtonian acceleration scales in spiral galaxies
V. F. Cardone, A. Del Popolo
We revisit the issue of the constancy of the dark matter (DM) and baryonic Newtonian acceleration scales within the DM scale radius by considering a large sample of late - type gal…
Extended Spherical Collapse and the Accelerating Universe
Antonino Del Popolo, Francesco Pace, J. A. S. Lima
The influence of the shear stress and angular momentum on the nonlinear spherical collapse model is discussed in the framework of the Einstein-de Sitter (EdS) and CDM models. By…
On the Density profile slope of Clusters of Galaxies
A. Del Popolo
The present paper extends to clusters of galaxies the study of Del Popolo (2012), concerning how the baryon-dark matter (DM) interplay shapes the density profile of dwarf galaxies.…
Cosmological measure with volume averaging and the vacuum energy problem
Artyom V. Astashenok, Antonino Del Popolo
In this paper, we give a possible solution to the cosmological constant problem. It is shown hat the traditional approach, based on volume weighting of probabilities, leads to an i…
Statistical properties of the dark matter haloes of dwarf galaxies and correlations with the environment
A. Del Popolo, V. F. Cardone
According to the now strongly supported concordance CDM model, galaxies may be grossly described as a luminous component embedded in a dark matter halo. The density profile of t…