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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)
View the source code document attached to this resource
Subjects Levels Resource Types
Astronomy
- Galaxies
= Galaxy Formation
Classical Mechanics
- Gravity
= Universal Gravitation
- Lower Undergraduate
- Upper Undergraduate
- Instructional Material
= Simulation
Intended Users Formats Ratings
- Learners
- Educators
- General Publics
- application/java
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Access Rights:
Free access
License:
This material is released under a GNU General Public License Version 3 license.
Rights Holder:
Robbie Mitchell
Keywords:
EJS, Easy Java Simulations, Toomres, colliding, galaxies, orbiting
Record Creator:
Metadata instance created June 15, 2011 by Mario Belloni
Record Updated:
June 11, 2014 by Andreu Glasmann
Last Update
when Cataloged:
June 15, 2011
Other Collections:

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Record Link
AIP Format
R. Mitchell, Computer Program ORBITING AND COLLIDING GALAXIES 3D MODEL (2011), WWW Document, (http://www.compadre.org/Repository/document/ServeFile.cfm?ID=11246&DocID=2286).
AJP/PRST-PER
R. Mitchell, Computer Program ORBITING AND COLLIDING GALAXIES 3D MODEL (2011), <http://www.compadre.org/Repository/document/ServeFile.cfm?ID=11246&DocID=2286>.
APA Format
Mitchell, R. (2011). Orbiting and Colliding Galaxies 3D Model [Computer software]. Retrieved December 19, 2014, from http://www.compadre.org/Repository/document/ServeFile.cfm?ID=11246&DocID=2286
Chicago Format
Mitchell, Robbie. "Orbiting and Colliding Galaxies 3D Model." http://www.compadre.org/Repository/document/ServeFile.cfm?ID=11246&DocID=2286 (accessed 19 December 2014).
MLA Format
Mitchell, Robbie. Orbiting and Colliding Galaxies 3D Model. Computer software. 2011. Java (JRE) 1.5. 19 Dec. 2014 <http://www.compadre.org/Repository/document/ServeFile.cfm?ID=11246&DocID=2286>.
BibTeX Export Format
@misc{ Author = "Robbie Mitchell", Title = {Orbiting and Colliding Galaxies 3D Model}, Month = {June}, Year = {2011} }
Refer Export Format

%A Robbie Mitchell
%T Orbiting and Colliding Galaxies 3D Model
%D June 15, 2011
%U http://www.compadre.org/Repository/document/ServeFile.cfm?ID=11246&DocID=2286
%O application/java

EndNote Export Format

%0 Computer Program
%A Mitchell, Robbie
%D June 15, 2011
%T Orbiting and Colliding Galaxies 3D Model
%8 June 15, 2011
%U http://www.compadre.org/Repository/document/ServeFile.cfm?ID=11246&DocID=2286


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Citation Source Information

The AIP Style presented is based on information from the AIP Style Manual.

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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
Is Supplemented By Physlet Physics 2E: Illustration 12.2: Orbits and Planetary Mass

Physlet Illustration 12.2 focuses on how relative mass influences the trajectories of bodies.

relation by Jonathan Szelistowski

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