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6 votes
1 answer
242 views

Need advice on thin accretion disk model

I'm a physics teacher and I'm building a simple accretion disk model to show to students in an astrophysics class (undergraduate level), as an exemple of physics modeling. I need to know if this ...
Cham's user avatar
  • 7,592
0 votes
1 answer
220 views

Why does most galaxies resemble a 2 dimensional plane? [duplicate]

Older galaxies mostly tend the revolve forming a disk. Why are the stars not revolving around the center of the galaxy like a sphere instead similar to electron in an atom?
Muze's user avatar
  • 1