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Foster, Kenji Furuya, Nami Sakai, Patricio Sanhueza, Satoshi Yamamoto, Takeshi Sakai, Tomoya Hirota, Yuri Aikawa","submitted_at":"2015-03-06T01:18:31Z","abstract_excerpt":"We have observed the clump G34.43+00.24 MM3 associated with an infrared dark cloud in DNC $J$=3--2, HN$^{13}$C $J$=3--2, and N$_2$H$^+$ $J$=3--2 with the Atacama Large Millimeter/submillimeter Array (ALMA). The N$_2$H$^+$ emission is found to be relatively weak near the hot core and the outflows, and its distribution is clearly anti-correlated with the CS emission. This result indicates that a young outflow is interacting with cold ambient gas. The HN$^{13}$C emission is compact and mostly emanates from the hot core, whereas the DNC emission is extended around the hot core. 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