radial_profiles.einasto_density_profile#

radial_profiles.einasto_density_profile(M, r_s, n)[source]#

A density profile where the logarithmic slope is a power-law [Eina65]. The form here is that given in Section 2 of [RvGB12].

Parameters:

  • M (float) – The total mass of the profile in M.

  • r_s (float) – The scale radius in kpc.

  • n (float) – The inverse power-law index.

Returns:

The corresponding radial profile object.

Return type:

RadialProfile

References

[Eina65]

  1. Einasto (1965), Kinematics and dynamics of stellar systems, Trudy Inst. Astrofiz. Alma-Ata 5, 87

[RvGB12]

(Retana-Montenegro, E; et. al. 2012A&A…540A..70R)