Chemistry of the organic-rich hot core G327.3-0.6

Authors

E Gibb
A Nummelin
William M. Irvine, University of Massachusetts - AmherstFollow
DCB Whittet
P Bergman

Publication Date

2000

Journal or Book Title

ASTROPHYSICAL JOURNAL

Abstract

We present gas-phase abundances of species found in the organic-rich hot core G327.3-0.6. The data were taken with the Swedish-ESO Submillimetre Telescope (SEST). The 13 mm spectrum of this source is dominated by emission features of nitrile species and saturated organics, with abundances greater than those found in many other hot cores, including Sgr B2 and OMC-1. Population diagram analysis indicates that many species (CH₃CN, C₂H₃CN, C₂H₅CN, CH₃OH, etc.) have hot components that originate in a compact (2) region. Gas-phase chemical models cannot reproduce the high abundances of these molecules found in hot cores, and we suggest that they originate from processing and evaporation of icy grain mantle material. In addition, we report the first detection of vibrationally excited ethyl cyanide and the first detection of methyl mercaptan (CH₃SH) outside the Galactic center.

Comments

The published version is located at http://iopscience.iop.org/0004-637X/545/1/309/51994.text.html

DOI

https://doi.org/10.1086/317805

Pages

309-326

Volume

545

Issue

1

Recommended Citation

Gibb, E; Nummelin, A; Irvine, William M.; Whittet, DCB; and Bergman, P, "Chemistry of the organic-rich hot core G327.3-0.6" (2000). ASTROPHYSICAL JOURNAL. 195.
https://doi.org/10.1086/317805