Spectral maps of the CN 1 → 0 line convolved to an angular resolution of 3.8″. To increase the signal-to-noise ratio, the velocity resolution has been degraded to 12.8 km s-1. The number in the upper right corner indicates the central channel velocity. Contour levels are 0.17 (5 × σ) to 1.955 in steps of 0.255 K. Crosses indicate the dynamical center of the galaxy and the position of SN 41.9+58.
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