Orbits Within Spherical Galaxies Model Documents
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The Orbits Within Spherical Galaxies model displays the two-dimensional trajectories of particles (stars) within a galaxy having a spherically symmetric mass distribution that heuristically approximates the distributions found in galaxies and bulges. The model uses a mass density proposed by Walter Dehnen to describe spatial distributions that vary as r-4 and r-g in galactic envelopes and cores where g is an adjustable power-law parameter. Units are chosen such that a typical galaxy has total mass M=1 and that the gravitational constant G=1.
The Orbits Within Spherical Galaxies model was developed using the Easy Java Simulations (EJS) modeling tool. It is distributed as a ready-to-run (compiled) Java archive. Double clicking the ejs_mech_orbits_OrbitsWithinSphericalGalaxies.jar file will run the program if Java is installed.
- Download ejs_mech_orbits_OrbitsWithinSphericalGalaxies.jar - 1932kb Java Archive File
Last Modified June 11, 2014
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Source Code Documents
The source code zip archive contains an XML representation of the Orbits Within Spherical Galaxies model. Unzip this archive in your EJS workspace to compile and run this model using EJS.
- Download ejs_mech_orbits_OrbitsWithinSphericalGalaxies.zip - 222kb Compressed File
Last Modified January 12, 2011