Journal
ASTROPHYSICAL JOURNAL
Volume 545, Issue 1, Pages 309-326Publisher
IOP PUBLISHING LTD
DOI: 10.1086/317805
Keywords
ISM : abundances; ISM : individual (G327.3-0.6); ISM : molecules; line : identification; radio lines : ISM
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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 1-3 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 etc.) have hot components that originate (CH3CN, C2H3CN, C2H5CN, CH3OH, in a compact (similar to2) 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.
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