The Phantom of RAMSES user guide for galaxy simulations using Milgromian and Newtonian gravity

TL;DR

This paper provides a comprehensive guide for setting up, executing, and analyzing galaxy simulations using Phantom of RAMSES, which incorporates Milgromian Dynamics (MOND) and Newtonian gravity, with detailed procedures and documentation.

Contribution

It introduces a new implementation of MOND within the Phantom of RAMSES code, enabling detailed galaxy simulations with adaptive mesh refinement.

Findings

Successful simulation setup for isolated and interacting galaxies

Implementation of MOND in a grid-based hydrodynamical code

Documentation of previous MOND simulation results

Abstract

This document describes the general process of setting up, running, and analysing disc galaxy simulations using the freely available program Phantom of RAMSES (PoR). This implements Milgromian Dynamics (MOND) with a patch to the RAMSES grid-based $N$-body and hydrodynamical code that uses adaptive mesh refinement. We discuss the procedure of setting up isolated and interacting disc galaxy initial conditions for PoR, running the simulations, and analysing the results. This manual also concisely documents all previously developed MOND simulation codes and the results obtained with them.