Correlation between the spectral index, Γ, from individual fits, vs. the Eddington ratio, log(λ_Edd)=log(L_Bol/L_Edd), for our sample of galaxies of the best fit models. The dotted and dashed green line represent the relation given by Gu & Cao (2009), the orange dotted represents Younes et al. (2011), the magenta dashed line is the relation obtained by She et al. (2018), while the solid black line is the correlation obtained in this work. The purple dashed line corresponds to the relation found by Fanali et al. (2013). The blue points represented the binned data. The pink points and light yellow stars are the data point of the best fit model in this work and the ones obtained by Esparza-Arredondo et al. (2021).