written by Robbie Mitchell
The Orbiting and Colliding Galaxies 3D Model is a three-dimensional extension of the Alar and Juri Toomres' 1972 supercomputer model of colliding galaxies. This model assumes that galactic centers are point masses and the orbiting stars do not interact with each other (the galactic cores interact with each other and the individual stars). Unlike the Toomres' model (and the Colliding Galaxies model by Christian and Lim), both galactic cores begin with a compliment of stars orbiting their respective cores. These stars start in a 3-D circular orbit about the center of each galaxy in one plane. When the two galaxies pass each other they produce the long spiraling tails.
The Orbiting and Colliding Galaxies Model was created using the Easy Java Simulations (EJS) modeling tool. It is distributed as a ready-to-run (compiled) Java archive. Double clicking the ejs_comp_phys_colliding_galaxies3d.jar file will run the program if Java is installed.
Please note that this resource requires at least version 1.5 of Java (JRE).
View the supplemental documents attached to this resource (3)
Physics 200 poster presented during the 2011 Davidson College student research symposium.
download 532kb .pdf
Published: June 15, 2011
Two Dimensional Version of the 3D model.
download 787kb .jar
Published: June 15, 2011
View the source code document attached to this resource
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Orbiting and Colliding Galaxies 3D Model:
Covers the Same Topic As Colliding Galaxies
Orbiting and Colliding Galaxies 3D Model is the three dimensional version of the Colliding Galaxies Model. The Orbiting and Colliding Galaxies 3D Model also has stars around both galactic cores.relation by Mario Belloni
Is Based On Easy Java Simulations Modeling and Authoring Tool
The Easy Java Simulations Modeling and Authoring Tool is needed to explore the computational model used in the Orbiting and Colliding Galaxies 3D Model.relation by Mario Belloni
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