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The Energetics and Efficiency of H2 Formation on the Surface of Simulated Interstellar Grains

from 2 - Formation - Destruction

Published online by Cambridge University Press:  04 August 2010

By
D. A. Williams ,
D. E. Williams ,
D. Clary ,
A. Farebrother ,
A. Fisher ,
J. Gingell ,
R. Jackman ,
N. Mason ,
A. Meijer  and
J. Perry
...Show all authors
Edited by
F. Combes  and
G. Pineau des Forets
D. A. Williams
Affiliation:
Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT
D. E. Williams
Affiliation:
Department of Chemistry, University College London, Gower Street, London WC1E 6BT
D. Clary
Affiliation:
Department of Chemistry, University College London, Gower Street, London WC1E 6BT
A. Farebrother
Affiliation:
Department of Chemistry, University College London, Gower Street, London WC1E 6BT
A. Fisher
Affiliation:
Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT
J. Gingell
Affiliation:
Department of Chemistry, University College London, Gower Street, London WC1E 6BT
R. Jackman
Affiliation:
Department of Electronic and Electrical Engineering, University College London, Gower Street, London WC1E 6BT
N. Mason
Affiliation:
Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT
A. Meijer
Affiliation:
Department of Chemistry, University College London, Gower Street, London WC1E 6BT
J. Perry
Affiliation:
Department of Chemistry, University College London, Gower Street, London WC1E 6BT
S. Price
Affiliation:
Department of Chemistry, University College London, Gower Street, London WC1E 6BT
J. Rawlings
Affiliation:
Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT
F. Combes
Affiliation:
Observatoire de Paris, DEMIRM
G. Pineau des Forets
Affiliation:
Observatoire de Paris de Meudon, DAEC
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Summary

This paper reports the theoretical and experimental work on H2 formation on interstellar dust mimics. These studies are being carried out under the auspices of the UCL Centre for Cosmic Chemistry and Physics.

Introduction

The purpose of this article is to report on the current state of work at the UCL Centre for Cosmic Chemistry and Physics, a consortium of scientists at University College London addressing problems of chemistry arising in astronomy. All the work currently in progress in this consortium is concerned with H2 formation on surfaces, and it consists of both theoretical and experimental programmes.

The Centre was formed a few years ago when it was realised that advances in both experimental and theoretical techniques now make it possible to address in a realistic manner some problems of longstanding and fundamental interest in astronomy. The expertise at UCL, both in theory and experiment, is very strong on surface reactions; the current motivation from astronomy also emphasises the gas/dust interaction (Williams 1998). It was decided, therefore, to undertake a long-term and coordinated programme on surface processes of relevance to astronomy. Of course, the most fundamental interaction is that leading to H2 formation on dust. There is currently some important experimental and theoretical work being carried out in this particular area, and much of this work has been reported at this meeting. Nevertheless, it was felt that the UCL consortium could make a useful contribution without simply replicating the experiments and calculations of others.

Type
Chapter
Information
Molecular Hydrogen in Space , pp. 99 - 106
Publisher: Cambridge University Press
Print publication year: 2000

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  • The Energetics and Efficiency of H2 Formation on the Surface of Simulated Interstellar Grains
    • By D. A. Williams, Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, D. E. Williams, Department of Chemistry, University College London, Gower Street, London WC1E 6BT, D. Clary, Department of Chemistry, University College London, Gower Street, London WC1E 6BT, A. Farebrother, Department of Chemistry, University College London, Gower Street, London WC1E 6BT, A. Fisher, Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, J. Gingell, Department of Chemistry, University College London, Gower Street, London WC1E 6BT, R. Jackman, Department of Electronic and Electrical Engineering, University College London, Gower Street, London WC1E 6BT, N. Mason, Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, A. Meijer, Department of Chemistry, University College London, Gower Street, London WC1E 6BT, J. Perry, Department of Chemistry, University College London, Gower Street, London WC1E 6BT, S. Price, Department of Chemistry, University College London, Gower Street, London WC1E 6BT, J. Rawlings, Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT
  • Edited by F. Combes, Observatoire de Paris, DEMIRM, G. Pineau des Forets, Observatoire de Paris de Meudon, DAEC
  • Book: Molecular Hydrogen in Space
  • Online publication: 04 August 2010
  • Chapter DOI: https://doi.org/10.1017/CBO9780511564635.015
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  • The Energetics and Efficiency of H2 Formation on the Surface of Simulated Interstellar Grains
    • By D. A. Williams, Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, D. E. Williams, Department of Chemistry, University College London, Gower Street, London WC1E 6BT, D. Clary, Department of Chemistry, University College London, Gower Street, London WC1E 6BT, A. Farebrother, Department of Chemistry, University College London, Gower Street, London WC1E 6BT, A. Fisher, Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, J. Gingell, Department of Chemistry, University College London, Gower Street, London WC1E 6BT, R. Jackman, Department of Electronic and Electrical Engineering, University College London, Gower Street, London WC1E 6BT, N. Mason, Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, A. Meijer, Department of Chemistry, University College London, Gower Street, London WC1E 6BT, J. Perry, Department of Chemistry, University College London, Gower Street, London WC1E 6BT, S. Price, Department of Chemistry, University College London, Gower Street, London WC1E 6BT, J. Rawlings, Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT
  • Edited by F. Combes, Observatoire de Paris, DEMIRM, G. Pineau des Forets, Observatoire de Paris de Meudon, DAEC
  • Book: Molecular Hydrogen in Space
  • Online publication: 04 August 2010
  • Chapter DOI: https://doi.org/10.1017/CBO9780511564635.015
Available formats
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Save book to Google Drive

To save content items to your account, please confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your account. Find out more about saving content to Google Drive.

  • The Energetics and Efficiency of H2 Formation on the Surface of Simulated Interstellar Grains
    • By D. A. Williams, Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, D. E. Williams, Department of Chemistry, University College London, Gower Street, London WC1E 6BT, D. Clary, Department of Chemistry, University College London, Gower Street, London WC1E 6BT, A. Farebrother, Department of Chemistry, University College London, Gower Street, London WC1E 6BT, A. Fisher, Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, J. Gingell, Department of Chemistry, University College London, Gower Street, London WC1E 6BT, R. Jackman, Department of Electronic and Electrical Engineering, University College London, Gower Street, London WC1E 6BT, N. Mason, Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, A. Meijer, Department of Chemistry, University College London, Gower Street, London WC1E 6BT, J. Perry, Department of Chemistry, University College London, Gower Street, London WC1E 6BT, S. Price, Department of Chemistry, University College London, Gower Street, London WC1E 6BT, J. Rawlings, Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT
  • Edited by F. Combes, Observatoire de Paris, DEMIRM, G. Pineau des Forets, Observatoire de Paris de Meudon, DAEC
  • Book: Molecular Hydrogen in Space
  • Online publication: 04 August 2010
  • Chapter DOI: https://doi.org/10.1017/CBO9780511564635.015
Available formats
×