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A search for MgNC and AlNC in TMC-1: The status of metals in dark cloud cores

Turner, Bernadette; Petrie, Simon; Dunbar, Robert B; Langston, G I

Description

Heavy metals in the gas phase are important in controlling the ionization of a cold dark cloud and hence the chemistry and finally the cloud evolution. Two of us (S. P. and R. C. D.) earlier suggested a fast radiative association mechanism to form MgNC and AlNC in TMC-1. We have conducted a sensitive search with the Green Bank Telescope (GBT ) for both species in TMC-1. The upper limit for the fractional abundance of MgNC is 1.2 × 10-11. We have run detailed models of the chemistry, which...[Show more]

CollectionsANU Research Publications
Date published: 2005
Type: Journal article
URI: http://hdl.handle.net/1885/83224
Source: Astrophysical Journal, The
DOI: 10.1086/427724

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