Astrochemistry

Publication Abstract

CARMA Observations of Large Organic Molecules in Orion-KL

Friedel, D. N. and Snyder, L. E.

We have conducted high resolution, Combined Array for Research in Millimeter-Wave Astronomy (CARMA), 1mm observations of organic molecules in the high mass star forming region Orion-KL. This region is known to have oxygen/nitrogen chemical differentiation and can tell us much about the processes that create these molecules in the interstellar medium.

We have observed a wide variety of molecular species (both O-bearing and N-bearing), including ethyl cyanide [C2H5CN], vinyl cyanide [C2H3CN], ethanol [C2H5OH], methanol [CH3OH], methyl formate [HCOOCH3] dimethyl ether [(CH3)2O], and acetone [(CH3)2CO] in order to study the chemistry of the regions. Our observations have shown that in Orion-KL the large N-bearing species are concentrated in small hot, dense clumps while most of the large O-bearing species are more widespread. An exception is (CH3)2CO, which is compact and only present in regions where both large N-bearing and O-bearing species are present. We present the results of these CARMA observations and their implications for astrochemistry.

Presented at the 211th Meeting of the American Astronomical Society, January 2008



Any comments or questions, contact me: friedel@astro.illinois.edu
© 2015, D. N. Friedel