Sample emission profiles in V4332 Sgr representing the entire emission region. Top panel: profiles of rotational emission of SiO 8–7 and CO 3–2. The black dashed line shows the best-fit parabola representing the high-velocity component. Middle panel: profile of SiO is compared to a Voigt profile and the narrower line of SO₂ 10_4,6 –10_3,7 is also shown. Bottom panel: two ALMA lines from the top panel are compared to electronic transitions of K I (at 7698.974 Å) and Ca I (at 6572.779 Å) observed in the visual (from Kamiński et al. 2010). The narrow absorption dips in the profile of K I are mainly interstellar lines. The correction to heliocentric velocity is –12.144 km s⁻¹.