mean_density_2d#

jeanspy.model.PlummerModel.mean_density_2d

Class and construction: PlummerModel.

PlummerModel.mean_density_2d(R_pc)[source]#

Average surface density inside a circular aperture.

Notes

Inputs and units. Nonnegative projected radius R_pc in pc, scalar or NumPy array.

Returns and shape. 1/(pi*(R_pc**2 + re_pc**2)), in pc^-2 with radius shape. This expression has a finite value at R_pc=0.

Validity. Nonnegative radii and a positive stored re_pc.