Dynamical friction in the quasi-linear formulation of modified Newtonian dynamics (QuMOND)

P Di Cintio, F Re, C Chiari - Astronomy & Astrophysics, 2024‏ - aanda.org
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 …

Dynamics of intermediate mass black holes in globular clusters-Wander radius and anisotropy profiles

P Di Cintio, M Pasquato, L Barbieri, AA Trani… - Astronomy & …, 2023‏ - aanda.org
Context. We recently introduced a new method for simulating collisional gravitational N-body
systems with approximately linear time scaling with N. Our method is based on the multi …

Relativistic dynamical friction in stellar systems

C Chiari, P Di Cintio - Astronomy & Astrophysics, 2023‏ - aanda.org
Aims. 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 accounting …

Detection of Intermediate-Mass Ratio Inspirals in Globular Clusters: Revealing the Brownian Motion with Gravitational Waves

A Torres-Orjuela, V Vázquez-Aceves… - arxiv preprint arxiv …, 2025‏ - arxiv.org
Intermediate-mass ratio inspirals (IMRIs) formed by stellar-mass compact objects orbiting
intermediate-mass black holes will be detected by future gravitational wave (GW) …

Discreteness effects, N-body chaos and the onset of radial-orbit instability

P Di Cintio, L Casetti - Monthly Notices of the Royal …, 2020‏ - academic.oup.com
We study the stability of a family of spherical equilibrium models of self-gravitating systems,
the so-called γ models with Osipkov–Merritt velocity anisotropy, by means of N-body …

Introducing a new multi-particle collision method for the evolution of dense stellar systems-Crash-test N-body simulations

P Di Cintio, M Pasquato, H Kim, SJ Yoon - Astronomy & Astrophysics, 2021‏ - aanda.org
Context. Stellar systems are broadly divided into collisional and non-collisional categories.
While the latter are large-N systems with long relaxation timescales and can be simulated …

Gravitational Brownian motion as inhomogeneous diffusion: Black hole populations in globular clusters

Z Roupas - Astronomy & Astrophysics, 2021‏ - aanda.org
Recent theoretical and numerical developments supported by observational evidence
strongly suggest that many globular clusters host a black hole (BH) population in their …

Thermal equilibrium of an ideal gas in a free-floating box

S Tremaine, B Kocsis, A Loeb - American Journal of Physics, 2021‏ - pubs.aip.org
The equilibrium and fluctuations of an ideal gas in a rigid container are studied by every
student of statistical mechanics. Here, we examine the less well-known case when the box is …