Image Details
Caption: Figure 2.
Model comparison for the SO2 transition at 430.194 GHz from M22-L. The observed spectrum (black points with error bars) is overlaid with best-fit model spectra for the three tested TPs: 3T (left), 2T (middle), and 1T (right). The red bar in the upper right corner of the right column indicates the ALMA spectral resolution (FWHM). Residuals are shown in the bottom row.
© 2026. The Author(s). Published by the American Astronomical Society.