surf_dens_exp_disk

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

Radial surface density function for an infinitely thin 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:

Sigr – Surface density of a thin exponential disk at r

Return type:

float or array