Frankland, VL, Rosu-Finsen, A, Lasne, J et al. (2 more authors) (2015) Laboratory surface astrochemistry experiments. Review of Scientific Instruments, 86 (5). 055103. ISSN 0034-6748
Abstract
Although several research groups have studied the formation of H2 on interstellar dust grains using surface science techniques, few have explored the formation of more complex molecules. A small number of these reactions produce molecules that remain on the surface of interstellar dust grains and, over time, lead to the formation of icy mantles. The most abundant of these species within the ice is H2O and is of particular interest as the observed molecular abundance cannot be accounted for using gas-phase chemistry alone. This article provides a brief introduction to the astronomical implications and motivations behind this research and the requirement for a new dual atomic beam ultrahigh vacuum (UHV) system. Further details of the apparatus design, characterisation, and calibration of the system are provided along with preliminary data from atomic O and O2 beam dosing on bare silica substrate and subsequent temperature programmed desorption measurements. The results obtained in this ongoing research may enable more chemically accurate surface formation mechanisms to be deduced for this and other species before simulating the kinetic data under interstellar conditions.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2015 AIP Publishing LLC. This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing.The following article appeared in Frankland, VL, Rosu-Finsen, A, Lasne, J, Collings, MP and McCoustra, MRS (2015) Laboratory surface astrochemistry experiments. Review of Scientific Instruments, 86 (5). 055103. ISSN 0034-6748 and may be found at http://dx.doi.org/10.1063/1.4919657. Reproduced in accordance with the publisher's self-archiving policy. |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Chemistry (Leeds) > Physical Chemistry (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 19 Feb 2016 12:31 |
Last Modified: | 04 Jul 2018 13:49 |
Published Version: | http://dx.doi.org/10.1063/1.4919657 |
Status: | Published |
Publisher: | American Institute of Physics |
Identification Number: | 10.1063/1.4919657 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:94948 |