Fig. 1.
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HI4PI emission and MALS absorption spectrum toward J0332-7249. Top: HI4PI H I spectrum with ΔvLSR = 1.28 km s−1 velocity resolution. Single-dish observations are sensitive to all H I gas phases.Bottom: Corresponding MALS absorption line spectrum with a coarser velocity resolution of ΔvLSR = 6.1 km s−1. Absorption line detection among the more dominant emission requires high angular resolution and is a tracer of cold and diffuse H I gas. The Gaussian decomposition components of both H I profiles are compiled in Tables A.1 and A.2, respectively.
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