267 citations · 2.1k across the 89 of their papers we have counts for
14 papers · 1 filter
Flat Circular Velocities on a megaparsec scale from the CDM model
Antonino Del Popolo, Man Ho Chan
A recent study using weak gravitational lensing reveals that there are some isolated galaxies having almost flat rotation curves at very large distance from the galactic centres. A…
Building stellar bulges and halo cores from massive clumps observed in the DYNAMO-HST sample
Mahmoud Hashim, Amr El-Zant, Antonino Del popolo
We present N-body simulations of the process of bulge formation in disc galaxies due to inward migration of massive stellar clumps. The process is accompanied by dark halo heating,…
Neutron star mass in dark matter clumps
Maksym Deliyergiyev, Antonino Del Popolo, Morgan Le Delliou
This paper investigates a hypothesis proposed in previous research relating neutron star (NS) mass and its dark matter (DM) accumulation. As DM accumulates, NS mass decreases, pred…
The effect of magnetic field on the inner Galactic rotation curve
Man Ho Chan, Antonino Del Popolo
In the past few decades, some studies pointed out that magnetic field might affect the rotation curves in galaxies. However, the impact is relatively small compared with the effect…
There is no universal acceleration scale in galaxies
Man Ho Chan, Shantanu Desai, Antonino Del Popolo
Recently, many studies seem to reveal the existence of some correlations between dark matter and baryonic matter. In particular, the unexpected tight Radial Acceleration Relation (…
Reply to: Overconfidence in Bayesian analyses of galaxy rotation curves
Davi C. Rodrigues, Valerio Marra, Antonino Del Popolo +1
Cameron {\it et al.}~2019 (hereafter C19) recommends a more cautious and rigorous approach to statistical analysis in astronomy. We welcome this particular side of their communicat…
The radial acceleration relation in galaxy clusters
Man Ho Chan, Antonino Del Popolo
Recently, the discovery of the radial acceleration relation (RAR) in galaxies has been regarded as an indirect support of alternative theories of gravity such as Modified Newtonian…
Reply to "Presence of a fundamental acceleration scale in galaxies" and "A common Milgromian acceleration scale in nature"
Davi C. Rodrigues, Valerio Marra, Antonino Del Popolo +1
This correspondence answers the criticisms raised in McGaugh et al 2018 and Kroupa et al 2018.
Evidences against cuspy dark matter halos in large galaxies
Davi C. Rodrigues, Antonino del Popolo, Valerio Marra +1
We develop and apply new techniques in order to uncover galaxy rotation curves (RC) systematics. Considering that an ideal dark matter (DM) profile should yield RCs that have no bi…
On the dark matter haloes inner structure and galaxy morphology
A. Del Popolo
In the present paper, we extend the study of Del Popolo (2010) to determine the slope of the inner density profile of galaxy haloes with different morphologies. We study how galaxy…
Gravitational microlensing as a probe for dark matter clumps
E. Fedorova, V. M. Sliusar, V. I. Zhdanov +3
Extended dark matter (DM) substructures may play the role of microlenses in the Milky Way and in extragalactic gravitational lens systems (GLSs). We compare microlensing effects ca…
The Cusp/Core problem: supernovae feedback versus the baryonic clumps and dynamical friction model
A. Del Popolo, F. Pace
In the present paper, we compare the predictions of two well known mechanisms considered able to solve the cusp/core problem (a. supernova feedback; b. baryonic clumps-DM interacti…
On the surface density of dark matter haloes
A. Saburova, A. Del Popolo
In this article, we test the conclusion of Donato et al. (2009) concerning the universality of the DM halo surface density . According to our study, the dispersion o…
The flat density profiles of massive, and relaxed galaxy clusters
A. Del Popolo
In the present paper, we studied by means of the SIM introduced in Del Popolo (2009), the total and DM density profiles, and the correlations among different quantities, observed b…