vcirc_exp_disk

dysmalpy.models.vcirc_exp_disk(r, mass, rd)

Rotation curve function for exponential disk

Parameters:

• r (float or array) – Radius or radii at which to calculate the surface density

• mass (float) – Total mass of the disk

• rd (float) – Disk scale length.

Returns:

vc – Circular velocity of an exponential disk as a function of r

Return type:

float or array