General mode identification, oscillation frequencies, and chunk division of GLOBAL. Left plots are for the MS star KIC 12069424, while right plots are for the low-luminosity RGB star KIC 12008916. Top panels: stellar PSD (dark gray) in logarithmic scale with a smoothing proportional to Γ_global overlaid (thick cyan curve, with yellow chunks representing ℓ = 2, 0 pairs). The level of the background estimated is shown by a horizontal dot-dashed red line. The vertical dotted yellow lines mark the frequencies ν_f, i resulting from Sect 4.6. The general mode identification (n, ℓ) (see Sect. 4.5) is indicated next to each frequency position. The orange downward-pointing arrows mark the asymptotic position of the radial modes, while the purple one shows the position of ν_max. The blue-shaded background (using alternate tonalities) indicates the different PSD chunks identified, with the individual chunk number reported. Bottom panels: ASEF showing the position of the local maxima ν_i (vertical dashed black lines). The blue-shaded regions mark r_a, b around each local maximum. The estimated frequencies ν_f, i shown in the top panels are indicated by vertical dotted red lines and red bullets, with their corresponding 1-σ uncertainties σ_f, i. The orange-shaded regions mark r_a, b for those local maxima corresponding to the frequencies ν_f, i that were discarded during the skimming process.