Channel maps showing the CO(2–1) 230.5 GHz emission in IRAS 12112+0305. Each panel shows the emission averaged over 39 MHz (~50 km s−1) channels. The contours correspond to (3, 6, 12, 24, 48, 96, 192) × σ and σ is the rms measured in each channel (180−260μJy beam−1) for this system. The relativistic LSRK velocity is indicated in each panel. The red crosses mark the location of the nuclei listed in Table 1.
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