# Gravitational N-body Simulations

@article{Trenti2008GravitationalNS, title={Gravitational N-body Simulations}, author={Michele Trenti and Piet Hut}, journal={arXiv: Astrophysics}, year={2008} }

Gravitational N-body simulations, that is numerical solutions of the equations of motions for N particles interacting gravitationally, are widely used tools in astrophysics, with applications from few body or solar system like systems all the way up to galactic and cosmological scales. In this article we present a summary review of the field highlighting the main methods for N-body simulations and the astrophysical context in which they are usually applied.

## 174 Citations

The progeny of stellar dynamics and stellar evolution within an N-body model of NGC 188

- PhysicsProceedings of the International Astronomical Union
- 2009

Abstract We present a direct N-body simulation modeling the evolution of the old (7 Gyr) open cluster NGC 188. This is the first N-body open cluster simulation whose initial binary population is…

pytreegrav: A fast Python gravity solver

- Physics, GeologyJ. Open Source Softw.
- 2021

Gravity is important in a wide variety of science problems. In particular, questions in astrophysics nearly all involve gravity, and can have large (≫ 104) numbers of gravitating masses, such as the…

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

- Physics, Computer Science
- 2020

The Multi-Particle collision for Dense stellar systems Code (MPCDSS) is a new code for evolving stellar systems with the Multi-particle Collision method, which amounts to a stochastic collision rule that allows to conserve exactly the energy and momentum over a cluster of particles experiencing the collision.

BINARY BLACK HOLE MERGER IN GALACTIC NUCLEI: POST-NEWTONIAN SIMULATIONS

- Physics
- 2008

This paper studies the formation and evolution of binary supermassive black holes (SMBHs) in rotating galactic nuclei, focusing on the role of stellar dynamics. We present the first N-body…

Gravitational Wave Physics and Astronomy in the nascent era

- Physics
- 2021

The detections of gravitational waves (GW) by LIGO/Virgo collaborations provide various possibilities to physics and astronomy. We are quite sure that GW observations will develop a lot both in…

Simulations of the Gravothermal Collapse Phase in Self-Interacting Dark Matter Halos

- Physics
- 2019

Non-cosmological N-body simulations of isolated self-interacting dark matter halos were carried out with two initial density profiles, the Hernquist profile and the NFW profile, for different…

The dynamical fate of binary star clusters in the Galactic tidal field

- Physics
- 2016

Fragmentation and fission of giant molecular clouds occasionally results in a pair of gravitationally bound star clusters that orbit their mutual centre of mass for some time, under the influence of…

The early evolution of star clusters in compressive and extensive tidal fields

- Physics, Geology
- 2017

We present N-body simulations of star clusters that initially evolve within a strong compressive tidal field and then transition into extensive tidal fields of varying strengths. While subject to…

Chaotic Dynamics in N-body Systems

- Physics
- 2013

Ever since Isaac Newton in 1687 posed the N-body problem, astronomers have been looking for its solutions in order to understand the evolution of dynamical systems, such as our own solar system, star…

Evolution of star clusters in arbitrary tidal fields

- Physics
- 2011

We present a novel and flexible tensor approach to computing the effect of a time-dependent tidal field acting on a stellar system. The tidal forces are recovered from the tensor by polynomial…

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