Identification of chunk quadrupole mode for the simulated F-type MS star 06550, having T_eff = 6416 K (Ball et al. 2018) and corresponding to a 1-year length observation with TESS (left panels), and the RGB star KIC 12008916 observed with Kepler for more than four years (right panels). Top panels: similar to Fig. 6, top panels, but now showing a PSD region containing a ℓ = 2, 0 mode pair, where the frequencies estimated from CHUNK are indicated by vertical dotted yellow lines, with included the corresponding (n, ℓ) mode identification obtained by FAMED. The cyan curve is the PSD smoothed by a factor proportional to Γ_chunk. The vertical double-dot dashed green lines, and their mode identification, are from Ball et al. (2018) for the MS star, and from C15 for the RGB star. Middle and bottom panels: chunk ASEF showing r_a, b (blue shading for ℓ = 2 and yellow for ℓ = 0), ν_f, i, σ_f, i, after and before applying a two-Lorentzian multimodal fit for the MS star, and a quadrupole mixed modes merging for the RGB star. The local maxima from the ASEF are marked by the vertical dot-dashed black lines, with green shading indicating the frequency ranges of those ASEF peaks that are merged.