I was wondering where I can get a more or less complete set of a galaxy...

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Physics

I was wondering where I can get a more or less complete set of agalaxy to test an n-body simulation (preferably two collidinggalaxies with approx 300k to 1M elements).

Is it possible to extract this data from a public source likeNasa? Or does it make more sense to just generate the data?

Note: I Found the SDSS Skyserver website, but I don't think it'spossible process this data to get useful initial conditions and amore or less complete galaxy.

Answer & Explanation Solved by verified expert
4.3 Ratings (901 Votes)
The Milky Way has about 7E11 Msun so in a simulation that breaks that up into 300K1M elements each element is going to represent at least 700000 Msuns worth of material on average One common scheme for this is called Smooth Particle    See Answer
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