Hostname: page-component-cd9895bd7-7cvxr Total loading time: 0 Render date: 2024-12-24T16:46:56.140Z Has data issue: false hasContentIssue false
  • English
  • Français

Models and observations of deuterated molecules in protostellar cores

Published online by Cambridge University Press:  01 February 2008

H. Roberts
H. Roberts*
Affiliation:
School of Mathematics and Physics, The Queen's University of BelfastBelfast, BT9 1NN, UK email: [email protected]
Rights & Permissions [Opens in a new window]

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.

Measuring the deuterium fractionation in different molecules can allow one to determine the physical conditions in the gas and to differentiate between gas-phase and grain surface chemical processing. Observations of molecular D/H ratios in different species towards the dense gas surrounding low-mass protostars are presented and are compared with model simulations. These consider gas-phase chemistry, accretion and desorption, and reactions on grain surfaces during the initial stages of core collapse.

Keywords

Astrochemistrymolecular processesstars: formationISM: molecules
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 4 , Symposium S251: Organic Matter in Space , February 2008 , pp. 99 - 104
Copyright
Copyright © International Astronomical Union 2008

References

Bacmann, A., Lefloch, B., Ceccarelli, C., et al. 2003, ApJ (Letter), 585, L55Google Scholar
Brown, P. B. & Millar, T. J. 1989, MNRAS, 237, 661CrossRefGoogle Scholar
Caselli, P., Walmsley, C. M., Tafalla, M., Dore, L., & Myers, P. C. 1999, ApJ (Letter), 523, L165CrossRefGoogle Scholar
Ceccarelli, C., Loinard, L., Castets, A., et al. 2001, A&A, 375, 40Google Scholar
Crapsi, A., Caselli, P., Walmsley, C. M. et al. 2005, ApJ, 619, 379Google Scholar
Garrod, R. T., Wakelam, V., & Herbst, E. 2007, A&A, 467, 1103Google Scholar
Geppert, W. D., Hellberg, F., Österdahl, F., et al. 2005, in: Lis, D. C., Blake, G. A. & Herbst, E. (eds.), Proc. IAU 231Google Scholar
Hidaka, H., Watanabe, N., & Kouchi, A. 2005, in: Lis, D. C., Blake, G. A. & Herbst, E. (eds.), Proc. IAU 231Google Scholar
Maret, S., Ceccarelli, C., Caux, E., et al. 2004, A&A, 416, 577Google Scholar
Millar, T. J., Bennett, A., & Herbst, E. 1989, ApJ, 340, 906CrossRefGoogle Scholar
Öberg, K. I., Fuchs, G. W., Awad, Z., et al. 2007, ApJ, 662, 23CrossRefGoogle Scholar
Osamura, Y., Roberts, H., & Herbst, E. 2005, ApJ 621, 348Google Scholar
Roberts, H., Fuller, G., Millar, T. J., Hatchell, J., Buckle, J. V. 2002, A&A, 381, 283Google Scholar
Roberts, H., Herbst, E., & Millar, T. J. 2003, ApJ (Letter), 591, L41CrossRefGoogle Scholar
Roberts, H., Herbst, E., & Millar, T. J. 2004, A&A, 424, 905Google Scholar
Roberts, H. & Millar, T. J. 2007, A&A, 471, 849Google Scholar
Roberts, J., Rawlings, J. M. C., Viti, S., & Williams, D. A. 2007, MNRAS, 382, 733CrossRefGoogle Scholar
Rodgers, S. D. & Charnley, S. B. 2002, P&SS, 50, 1215Google Scholar
Roueff, E., Tiné, S., Coudert, L. H., et al. 2000, A&A, 354, L63Google Scholar
Stantcheva, T. & Herbst, E. 2003, MNRAS, 340, 983CrossRefGoogle Scholar
Vastel, C., Phillips, T. G., Ceccarelli, C., & Pearson, J. 2003, ApJ (Letter), 593, L97CrossRefGoogle Scholar
Vastel, C., Phillips, T. G., & Yoshida, H. 2004, ApJ (Letter), 606, L127Google Scholar
Walmsley, C. M., Flower, D. R., & Pineau des Forêts, G. 2004, A&A, 418, 1035Google Scholar
Watanabe, N., Nagaoka, A., Shiraki, T., & Kouchi, A. 2004, ApJ, 616, 638CrossRefGoogle Scholar