Galaxy Crash
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Real Galaxies

  • Here is a collection of real interacting galaxies. Model 3 of them using the GalCrash applet. In each case, explain why you chose the parameters you did (mass ratio, pericenter, galaxy geometry). Make sure to make a note of the time at which the simulation matches the observed galaxy.

    Antennae: Cartwheel:




    Messier 51: Mice:




    NGC 7252:

  • How unique is your solution? What information would you find helpful to further constrain your solution?