Hostname: page-component-586b7cd67f-l7hp2 Total loading time: 0 Render date: 2024-11-27T01:36:41.041Z Has data issue: false hasContentIssue false
  • English
  • Français

The Formation of Deuterated Molecules in Dense Clouds

Published online by Cambridge University Press:  07 August 2017

T J Millar
T J Millar*
Affiliation:
Department of Mathematics, UMIST, PO Box 88, Manchester, UK

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

In this article, I list the deuterated species detected so far, together with an estimate of their abundance ratios relative to their hydrogen bearing parent for a variety of astronomical regions, discuss the basic chemical processes which fractionate deuterium together with some simple estimates of the degree of fractionation which can result from these processes. I then discuss in detail the deuteration of hydrocarbon molecules and show that the effects of chemical reactions which can recycle parent species can appreciably affect estimates of fractionation. Finally I shall discuss how structural effects may inhibit fractionation in the cyanopolyynes and related species.

Type
Quiescent Clouds and Regions of Star Formation
Information
Symposium - International Astronomical Union , Volume 150: Astrochemistry of Cosmic Phenomena , 1992 , pp. 211 - 215
Copyright
Copyright © Kluwer 1992 

References

REFERENCES

Adams, N G and Smith, D: 1985. Ap. J. 294, L63 CrossRefGoogle Scholar
Allen, T. Goddard, J D and Schaefer, H F: 1980, J. Chem. Phys. 73, 3255 CrossRefGoogle Scholar
Bell, M B, Avery, L W, Matthews, H E, Feldman, P A, Watson, J. K. G. Madden, S C and Irvine, W M: 1988, Ap. J. 326, 924 CrossRefGoogle Scholar
Bell, M B, Feldman, P A, Matthews, H E and Avery, L W: 1986, Ap. J. 311, L89 CrossRefGoogle Scholar
Brown, P D and Millar, T J: 1989a, Mon. Not. R. astr. Soc. 237, 661 CrossRefGoogle Scholar
Brown, P D and Millar, T J: 1989b, Mon. Not. R. astr. Soc. 240, 25P CrossRefGoogle Scholar
Brown, R D and Rice, H N: 1986, Mon. Not. R. astr. Soc. 223, 429 CrossRefGoogle Scholar
Croswell, K and Dalgarno, A: 1985, Ap. J. 289, 618 CrossRefGoogle Scholar
Dalgarno, A and Lepp, S: 1984, Ap. J. 287, L47 CrossRefGoogle Scholar
Gerin, M, Wootten, H A, Combes, F, Boulanger, F, Peters, W F III, Kuiper, T B H, Encrenaz, P J and Bogey, M: 1987, Astron. Astrophys. 173, L1 Google Scholar
Guélin, M, Langer, W D, Snell, R L and Wootten, A: 1977, Ap. J. 217, L165 CrossRefGoogle Scholar
Lee, S K and Amano, T: 1987, Ap. J. 323, L145 CrossRefGoogle Scholar
Millar, T J, Bennett, A and Herbst, E: 1989, Ap. J. 340, 906 CrossRefGoogle Scholar
Phillips, T G, Blake, G A, Keene, J, Woods, R C and Churchwell, E B: 1985, Ap. J. 294, L45 CrossRefGoogle Scholar
Rogerson, J B, York, D G, Drake, J F, Jenkins, E B, Morton, D C and Spitzer, L: 1973, Ap. J. 181, L110 CrossRefGoogle Scholar
Snyder, L E, Hollis, J M, Buhl, D and Watson, W D: 1977, Ap. J. 218, L61 CrossRefGoogle Scholar
Suzuki, H: 1987, in Vardya, M S and Tarafdar, S P, ed(s)., Astrochemistry , Dordrecht: Reidel, p. 199 CrossRefGoogle Scholar
Turner, B E: 1989, Ap. J. 347, L39 CrossRefGoogle Scholar
Turner, B E: 1990, Ap. J. 362, L29 CrossRefGoogle Scholar
Watson, W D: 1976, Rev. Mod. Phys. 48, 513 CrossRefGoogle Scholar
Watson, W D: 1977, in Audouze, J, ed(s)., CNO Processes in Astrophysics , Dordrecht: Reidel, p. 105 CrossRefGoogle Scholar
Wootten, A: 1987, in Vardya, M S and Tarafdar, S P, ed(s)., Astrochemistry , Dordrecht: Reidel, p.311 CrossRefGoogle Scholar