High Resolution $\lambda$=1mm CARMA Observations of Large Molecules in Orion-KL

Abstract

We present high resolution, Combined Array for Research in Millimeter-Wave Astronomy (CARMA), $\lambda$=1mm observations of several molecular species toward Orion-KL. These are the highest spatial and spectral resolution 1mm observations of these molecules to date. Our observations show that ethyl cyanide [C${}_2$H${}_5$CN] and vinyl cyanide [C${}_2$H${}_3$CN] originate from multiple cores near the Orion hot core and IRc7. Additionally we show that dimethyl ether [(CH${}_3$)${}_2$O] and methyl formate [HCOOCH${}_3$] originate from IRc5 and IRc6 and that acetone [(CH${}_3$)${}_2$CO] originates only from areas where both N-bearing and O-bearing species are present.

29 pages, 11 figures, accepted for publication in ApJ