Upper panel: Separation of starbursts (purple), MS galaxies (blue), and quenched galaxies (red) in SIMBA using their locus in the SFR − M_★ diagram at z = 1 with log(SFR_SB/SFR_MS) > 0.2 dex and log(τ_SB/τ_MS) < − 0.2 dex. Lower panel: Separation in the τ − M_★ diagram with the same starburst-selection criteria. The blue solid lines indicate the best-fit MS relations, i.e. the SFR-M_★ and τ-M_★ relations for SFGs in the upper and lower panels, respectively.