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. 2006 Aug 7;103(33):12274–12279. doi: 10.1073/pnas.0602277103

Fig. 2.

Fig. 2.

Maps from the Plateau de Bure interferometer showing the molecular distributions of various species in the envelope of IRC+10216 (17, 18). MgNC, C2H, HC5N, and C4H all exist in the outer shell, whereas NaCl is an inner envelope species. SiC2 is present in the intermediate regions.