Sample spectral profiles of transitions probing the atmosphere of Mira. The value of E_u is indicated for each transition in the legend. The transitions were chosen to show features requiring a broad range of excitation temperatures. The center-of-mass velocity of Mira is shown with the vertical line. The panels cover different velocity ranges but are in scale. All molecular spectra were extracted within an aperture of about 0.̋2 radius, which almost fully encompasses the emission of TiO and TiO₂. Left: high-excitation lines, H₂O ν= 0 17_4,13 → 16_7,10, H₂O ν₁ = 1 → ν₃ = 112_3,9 → 11_5,6, and HCN ν₂ = 1J = 4 → 3. The two latter lines are seen at a peculiar radial velocity of ~40 km s^-1 and probe a region of the atmosphere that is affected by a shock. Also shown in this panel are two profiles of the Hβ hydrogen recombination lines observed in 2010 at phases 0.17 and 0.24 bracketing the phase of the ALMA data, ϕ = 0.21. The hydrogen lines probe the recombining wake of the strong shock. Their profiles are slightly affected by absorption in photospheric lines of TiO and their broad profile is a result of scattering. Center: transition from levels in a broad range of E_u that show an absorption feature indicative of an infall. Right: lines of SO₂ of moderate and high excitation. The SO₂ profiles are wider (more parabolic) than any other molecular features observed.