Volume 453, Number 3, July III 2006
|Page(s)||949 - 958|
|Section||Interstellar and circumstellar matter|
|Published online||28 June 2006|
Testing grain surface chemistry: a survey of deuterated formaldehyde and methanol in low-mass class 0 protostars
Max Planck Institut für Radioastronomie, Auf dem Hügel 69, 53121 Bonn, Germany
2 Laboratoire d'Astrophysique, Observatoire de Grenoble, BP 53, 38041 Grenoble Cedex 09, France
3 SRON, PO Box 800, 9700 AV Groningen, The Netherlands
4 Observatoire de Bordeaux, BP 89, 33270 Floirac, France
5 CESR CNRS-UPS, BP 4346, 31028 Toulouse Cedex 04, France
6 Department of Astronomy, University of Michigan, 500 Church Street, Ann Arbor MI 48109-1042, USA
Accepted: 28 February 2006
Despite the low cosmic abundance of deuterium (D/H ~ 10-5), high degrees of deuterium fractionation in molecules are observed in star-forming regions with enhancements that can reach 13 orders of magnitude, a level that current models have difficulty accounting for.
Key words: ISM: abundances / ISM: molecules / stars: formation
© ESO, 2006
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.