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

References in corpus (2)

• Submm line imaging of Orion-KL with the Submillimeter Array
• Sub-arcsecond sub-mm continuum observations of Orion-KL

Cited by in corpus (16)

• Herschel observations of EXtra-Ordinary Sources: Analysis of the HIFI 1.2 THz Wide Spectral Survey Toward Orion KL I. Methods
• The ALMA-PILS survey: First detections of ethylene oxide, acetone and propanal toward the low-mass protostar IRAS 16293-2422
• CH3OCH3 in Orion-KL: a striking similarity with HCOOCH3
• Unveiling Sources of Heating in the Vicinity of the Orion BN/KL Hot Core as Traced by Highly Excited Inversion Transitions of Ammonia
• Observational Results of a Multi-Telescope Campaign in Search of Interstellar Urea [(NH${}_2$)${}_2$CO]
• Deuterated methanol in Orion BN/KL
• Acetone in Orion BN/KL - High-resolution maps of a special oxygen-bearing molecule
• 13C-methyl formate: observations of a sample of high mass star-forming regions including Orion-KL and spectroscopic characterization
• Complex Organic Molecules at High Spatial Resolution Toward Orion-KL II: Kinematics
• Resolving the Structure and Kinematics of the BN Object at $0\text{.}"2$ Resolution
• Herschel/HIFI Spectral Mapping of C${}^{+}$, CH${}^{+}$, and CH in Orion BN/KL: The Prevailing Role of Ultraviolet Irradiation in CH${}^{+}$ Formation
• Protostellar Interferometric Line Survey of the Cygnus X region (PILS-Cygnus) -- First results: observations of CygX-N30
• Mid-J CO emission from the Orion BN/KL explosive outflow
• Complex molecules in W51 North region
• Millimeter Spectral Line Mapping Observations Toward Four Massive Star Forming HII Regions
• The distribution of deuterated formaldehyde within Orion-KL