Gadget (simulation program)
Gadget is a freely available software for astrophysical / cosmological simulations and is based on the N-Body Method / Smoothed Particle Hydrodynamics (SPH). The simulation code was developed by Volker Springel at the Max Planck Institute for Astrophysics . The name is derived from the acronym " GA laxies with D ark matter and G as int E rac T ". Gadget is available under the GNU GPL .
description
GADGET calculates the gravitational forces with a hierarchical tree algorithm (optionally in combination with the particle mesh method for gravitational forces over large distances) and simulates gas using Smooth Particle Hydrodynamics (SPH). The code can be used for investigations of isolated systems or for simulations that include the cosmological expansion of space with or without periodic boundary conditions . In all these types of simulations, GADGET models the development of a self-gravitational, collision-free N-body system and allows the optional inclusion of gas dynamics. Both the force calculation and the time step size of GADGET are fully adaptive.
GADGET can therefore be used to solve a wide variety of astrophysical problems, ranging from colliding and merging galaxies to the formation of large-scale structures in the universe . By including additional physical processes such as radiation cooling and heating, GADGET can also be used to investigate the dynamics of the gaseous intergalactic medium or to investigate star formation and its regulation through feedback processes.
See also
Web links
Individual evidence
- ↑ Cosmological simulations with GADGET-2. Retrieved February 28, 2020 .