Other
Scientific paper
Oct 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002p%26ss...50.1173r&link_type=abstract
Planetary and Space Science, Volume 50, Issue 12-13, p. 1173-1178.
Other
3
Scientific paper
Observations of [HDCO]/[H2CO] and [DCN]/[HCN] ratios have been made towards a selection of low-mass protostellar cores in three different star forming regions. Most [HDCO]/ [H2CO] ratios are between 0.05 and 0.07, similar to the values observed towards the dark clouds, TMC-1 and L134N. [DCN]/[HCN] ratios are /~0.04, higher than those seen in TMC-1, around the low-mass protostar, IRAS16293, and in the Orion Hot Core, but similar values to the Orion Compact Ridge and L134N. These results are compared with predictions from chemical models, and to other observations made in these sources. We find best agreement between models and observations by assuming that interaction between gas phase molecules and dust grains has impacted on the chemistry during the cold pre-collapse phase of the cloud's history. There are no marked difference between molecular D/H ratios towards different regions, or between Class 0 and I protostars. However, the difference between the [DCN]/[HCN] ratios we have measured and those previously observed towards Hot Molecular Cores leads us to suggest that there are significant evolutionary differences between high and low mass star forming regions.
Buckle Jane V.
Fuller Gary A.
Hatchell Jennifer
Millar Thomas J.
Roberts Helen
No associations
LandOfFree
Molecular D/H ratios in the dense gas surrounding low-mass protostars does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Molecular D/H ratios in the dense gas surrounding low-mass protostars, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Molecular D/H ratios in the dense gas surrounding low-mass protostars will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1861778