NAME:
plotRotcurve
PURPOSE:
plot the rotation curve for this potential (in the z=0 plane for non-spherical potentials)
INPUT:
Pot - Potential or list of Potential instances
Rrange - Range in R to consider
grid= grid in R
savefilename= save to or restore from this savefile (pickle)
+bovy_plot.bovy_plot args and kwargs
OUTPUT:
plot to output device
HISTORY:
2010-07-10 - Written - Bovy (NYU)