Extended Data Fig. 6: ALMA interferometric spectra of CH3OH (observed 4 May 2024).
From: A D/H ratio consistent with Earth’s water in Halley-type comet 12P from ALMA HDO mapping

The real parts of the observed visibility spectra are shown as a function of baseline interval, averaged within the uv range specified in each panel (corresponding to angular sizes θ in the plane of the sky). The best-fit SUBLIME radiative transfer model is overlaid in red.