49 citations · 293 across the 32 of their papers we have counts for
18 papers · 1 filter
Dynamical friction vs. subhalo heating in Cold Dark Matter haloes
Jorge Peñarrubia, Pierfrancesco Di Cintio, Eduardo Vitral +1
The orbital evolution of massive stellar systems embedded in dark matter haloes is governed by competing processes. Dynamical friction removes orbital energy, whereas fluctuations…
On an empirical method to build near-equilibrium axisymmetric and triaxial galaxy models
Pierfrancesco Di Cintio, Alessandro Alberto Trani, Valentina Cesare
We introduce a numerical technique to implement body realizations of axisymmetric and triaxial self-gravitating system starting from a spherical self-consistent models for whic…
The stability of radially anisotropic rotating stellar systems with a central density cusp
Pierfrancesco Di Cintio, Anna Lisa Varri
We investigate the interplay between radial velocity anisotropy and internal rotation in self-gravitating systems characterised by initial spherical symmetry and a moderate density…
Tidal mass loss in the Fornax dwarf spheroidal galaxy through N-body simulations with Gaia DR3-based orbits
Pierfrancesco Di Cintio, Giuliano Iorio, Francesco Calura +2
The Fornax dwarf spheroidal galaxy (dSph) represents a challenge for some globular cluster (GC) formation models, because an exceptionally high fraction of its stellar mass is lock…
Dynamical friction in the quasi-linear formulation of modified Newtonian dynamics (QuMOND)
Pierfrancesco Di Cintio, Federico Re, Caterina Chiari
Aims. We explore the dynamical friction on a test mass in gravitational systems in the Quasi linear formulation of Modified Newtonian Dynamics (QuMOND). Methods. Exploiting the qua…
Dissipationless collapse and the dynamical mass-ellipticity relation of elliptical galaxies in Newtonian gravity and MOND
Pierfrancesco Di Cintio
Context. Deur (2014) and Winters et al. (2023) proposed an empirical relation between the dark to total mass ratio and ellipticity in elliptical galaxies from their observed total…
Structure of the equivalent Newtonian systems in MOND N-body simulations. Density profiles and the core-cusp problem
Federico Re, Pierfrancesco Di Cintio
We investigate the core-cusp problem of the cold dark matter (CDM) scenario in the context of Modified Newtonian Dynamics (MOND) paradigm exploiting the concept of equivalen…
Dynamics of intermediate mass black holes in globular clusters. Wander radius and anisotropy profiles
Pierfrancesco Di Cintio, Mario Pasquato, Luca Barbieri +2
We recently introduced a new method for simulating collisional gravitational N-body systems with approximately linear time scaling with , based on the Multi-Particle Collision (…
Relativistic dynamical friction in stellar systems
Caterina Chiari, Pierfrancesco Di Cintio
We extend the classical formulation of the dynamical friction effect on a test star by Chandrasekhar to the case of relativistic velocities and velocity distributions also accounti…
Multiparticle collision simulations of dense stellar systems and plasmas
P. Di Cintio, M. Pasquato, L. Barbieri +13
We summarize a series of numerical experiments of collisional dynamics in dense stellar systems such as globular clusters (GCs) and in weakly collisional plasmas using a novel simu…
Symplectic coarse graining approach to the dynamics of spherical self-gravitating systems
Luca Barbieri, Pierfrancesco Di Cintio, Guido Giachetti +2
We investigate the evolution of the phase-space distribution function around slightly perturbed stationary states and the process of violent relaxation in the context of the dissip…
Noise, friction and the radial-orbit instability in anisotropic stellar systems: stochastic N-body simulations
Pierfrancesco Di Cintio, Lapo Casetti
By means of numerical simulations we study the radial-orbit instability in anisotropic self-gravitating body systems under the effect of noise. We find that the presence of add…
Introducing a new multi-particle collision method for the evolution of dense stellar systems II. Core collapse
Pierfrancesco Di Cintio, Mario Pasquato, Alicia Simon-Petit +1
In a previous paper we introduced a new method for simulating collisional gravitational -body systems with linear time scaling on , based on the Multi-Particle Collision (MPC…
Introducing a new multi-particle collision method for the evolution of dense stellar systems. Crash-test N-body simulations
Pierfrancesco Di Cintio, Mario Pasquato, Hyunwoo Kim +1
Stellar systems are broadly divided into collisional and non-collisional. The latter are large-N systems with long relaxation timescales and can be simulated disregarding two-body…
Radially anisotropic systems with forces. II: radial-orbit instability
Pierfrancesco Di Cintio, Luca Ciotti, Carlo Nipoti
We continue to investigate the dynamics of collisionless systems of particles interacting via additive interparticle forces. Here we focus on the dependence of the radial-…
Radially anisotropic systems with forces: equilibrium states
Pierfrancesco Di Cintio, Luca Ciotti, Carlo Nipoti
We continue the study of collisionless systems governed by additive interparticle forces by focusing on the influence of the force exponent on radial orbital anisotrop…
Relaxation of N-body systems with additive r^-α interparticle forces
Pierfrancesco Di Cintio, Luca Ciotti, Carlo Nipoti
In Newtonian gravity the final states of cold dissipationless collapses are characterized by several structural and dynamical properties remarkably similar to those of observed ell…
Relaxation of spherical systems with long-range interactions: a numerical investigation
P. Di Cintio, L. Ciotti
The process of relaxation of a system of particles interacting with long-range forces is relevant to many areas of Physics. For obvious reasons, in Stellar Dynamics much attention…