Average mode linewidth at maximum mode height, ⟨ Γ_H ⟩, for the LRGs (red circles) and the sample of main-sequence and subgiant stars analyzed by Appourchaux et al. (2012) (blue triangles) as a function of the stellar effective temperature from Pinsonneault et al. (2012), in a linear-log scale. 1σ error bars are shown on both coordinates. The solid pink line shows a polynomial fit to the sample of RGs, while the solid teal line represents the law proposed by Appourchaux et al. (2012) for their sample of stars. The dashed yellow line is a polynomial fit to the total sample of stars. The 3σ regions coming from the polynomial fits are also shown for comparison. The inset shows a zoom-in of our sample of red giant stars.