Fig. 2
Field M 31-1a centered on RA: 00:42:44.1 and Dec: +41:15:42 (J2000) observed at IRAM-30 m HERA, superimposed on the A
observed extinction map (Melchior et al. 2000, left panel), Hα and [NII] emission map (Ciardullo et al. 1988, middle panel), and 8 μm Spitzer emission map (Block et al. 2006, right panel). The circles correspond to the ≥ 3σ detections discussed in this paper.
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