Walsh, C orcid.org/0000-0001-6078-786X, Harada, N, Herbst, E et al. (1 more author) (2009) The Effects of Molecular Anions on the Chemistry of Dark Clouds. The Astrophysical Journal, 700 (1). pp. 752-761. ISSN 0004-637X
Abstract
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 H2, 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.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2009. The American Astronomical Society. All rights reserved. Reproduced in accordance with the publisher's self-archiving policy. |
Keywords: | Astrochemistry; ISM: abundances; ISM: clouds; ISM: molecules |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Physics and Astronomy (Leeds) > Astrophysics (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 10 Sep 2019 14:14 |
Last Modified: | 10 Sep 2019 14:14 |
Status: | Published |
Publisher: | American Astronomical Society |
Identification Number: | 10.1088/0004-637X/700/1/752 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:107143 |