Question #9959b

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SCooke
Jan 29, 2018

The rotation curve of a galaxy is the variation in the orbital circular velocity of stars or gas clouds at different distances from the center.

Explanation:

The manner in which the velocities vary with radius reflects the distribution of mass in the galaxy. See the following reference for equation details.

http://www.astro.cornell.edu/academics/courses/astro201/rotation_curves.htm

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