density_2d_normalized_re# jeanspy.model.SersicModel.density_2d_normalized_re Class and construction: SersicModel. SersicModel.density_2d_normalized_re(R_pc)[source]# Return the dimensionless projected density ratio Sigma(R)/Sigma(re). R_pc is a scalar or NumPy array in pc; output follows its shape. The stored re_pc and n must lie in the supported positive domain.