fix comment about r_eval for gen-gauss
@@ -526,7 +526,7 @@ class GeneralizedGaussianSpatialModel(SpatialModel):
r"""Evaluation radius (`~astropy.coordinates.Angle`).
The evaluation radius is defined as r_eval = r_0*(1+8*eta) so it verifies:
r_eval -> r_0 if eta -> 0
- r_eval = 5*r_0 = 5*sigma_gauss if eta=0.5
+ r_eval = 5*r_0 > 5*sigma_gauss = 5*r_0/sqrt(2) ~ 3.5*r_0 if eta=0.5
r_eval = 9*r_0 > 5*sigma_laplace = 5*sqrt(2)*r_0 ~ 7*r_0 if eta = 1
r_eval -> inf if eta -> inf
"""
