The Effects of Molecular Anions on the Chemistry of Dark Clouds
Data(s) |
20/07/2009
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Resumo |
We have investigated the role of molecular anion chemistry in pseudo-time-dependent chemical models of dark clouds. With oxygen-rich elemental abundances, the addition of anions results in a slight improvement in the overall agreement between model results and observations of molecular abundances in Taurus molecular cloud 1 (TMC-1 (CP)). More importantly, with the inclusion of anions, we see an enhanced production efficiency of unsaturated carbon-chain neutral molecules, especially in the longer members of the families C(n)H, C(n)H(2), and HC(n)N. The use of carbon-rich elemental abundances in models of TMC-1 (CP) with anion chemistry worsens the agreement with observations compared with model results obtained in the absence of anions. |
Formato |
application/pdf |
Identificador | |
Idioma(s) |
eng |
Direitos |
info:eu-repo/semantics/restrictedAccess |
Fonte |
Walsh , C , Harada , N , Herbst , E & Millar , T J 2009 , ' The Effects of Molecular Anions on the Chemistry of Dark Clouds ' Astrophysical Journal , vol 700 , no. 1 , pp. 752-761 . DOI: 10.1088/0004-637X/700/1/752 |
Tipo |
article |