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Modeling deuterium chemistry of interstellar space with large chemical networks

Published online by Cambridge University Press:  05 March 2015

T. Albertsson ,
D. A. Semenov ,
A. I. Vasyunin ,
Th. Henning  and
E. Herbst
T. Albertsson
Affiliation:
Max-Planck-Institut für Astronomie, Königstuhl 17, 69117 Heidelberg, Germany email: albertsson@mpia.de
D. A. Semenov
Affiliation:
Max-Planck-Institut für Astronomie, Königstuhl 17, 69117 Heidelberg, Germany email: albertsson@mpia.de
A. I. Vasyunin
Affiliation:
Department of Chemistry, University of Virginia, Charlottesville, VA 22904, USA
Th. Henning
Affiliation:
Max-Planck-Institut für Astronomie, Königstuhl 17, 69117 Heidelberg, Germany email: albertsson@mpia.de
E. Herbst
Affiliation:
Department of Chemistry, University of Virginia, Charlottesville, VA 22904, USA
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Abstract

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Observations of deuterated species are essential to probing the properties and thermal history of various astrophysical environments, and the ALMA observing facilities will reveal a multitude of new deuterated molecules. To analyze these new vast data we have constructed a new up-to-date network with the largest collection of deuterium chemistry reactions to date. We assess the reliability of the network and probe the role of physical parameters and initial abundances on the chemical evolution of deuterated species. Finally, we perform a sensitivity study to assess the uncertainties in the estimated abundances and D/H ratios.

Keywords

astrochemistrymolecular processesmethods: numericalISM: cloudsISM: moleculesstars: circumstellar matterprotostars
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 10 , Highlights H16: Highlights of Astronomy , August 2012 , pp. 624 - 625
Copyright
Copyright © International Astronomical Union 2015 

References

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