The ⟨ L_iso ⟩– (left) and the L_a– (right) correlations (solid black lines) and the corresponding 1σ confidence levels (dashed black lines). The sources considered are GRB 060729 (pink), GRB 061007 (black), GRB 080319B (blue), GRB 090618 (green), GRB 091127 (red), GRB 111228A (cyan), and GRB 130427A (purple). The tighter BdHNe L_a– correlation is compared to the one in Dainotti et al. (2011a), corresponding to m = −1.04 and q = 51.30 (solid gray line) and σ = 0.76 (dot-dashed gray lines).