Astronomy and Astrophysics – Astronomy
Scientific paper
Sep 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009apj...702.1025s&link_type=abstract
The Astrophysical Journal, Volume 702, Issue 2, pp. 1025-1035 (2009).
Astronomy and Astrophysics
Astronomy
10
Ism: Abundances, Ism: Individual: L1527, Ism: Molecules, Stars: Formation
Scientific paper
We have conducted millimeter-wave observations of deuterated species of various carbon-chain molecules toward a low-mass star-forming region, L1527, which shows extraordinary richness of carbon-chain molecules in a vicinity of the protostar (Warm Carbon Chain Chemistry; WCCC). We have detected the spectral lines of l-C3D, C4D, C4HD, DC3N, DC5N, and c-C3HD, where l-C3D and C4HD are detected for the first time in space. The deuterium fractionation ratios are found to be moderate (2% to 7%), although they tend to be higher than those in the starless core, TMC-1. The upper limit to the [CH2DOH]/[CH3OH] ratio is also as low as 3%. Therefore, high deuterium fractionation ratios reported for hot corino sources are not seen in L1527. The observed ratios mean that the depletion of CO onto dust grains had not proceeded far in L1527, compared to the hot corino case. This would be consistent with a short timescale of the starless core phase, as suggested for the possible origin of WCCC.
Hirota Tomoya
Sakai Nami
Sakai Takeshi
Yamamoto Satoshi
No associations
LandOfFree
Deuterated Molecules in Warm Carbon Chain Chemistry: The L1527 Case 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 Deuterated Molecules in Warm Carbon Chain Chemistry: The L1527 Case, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Deuterated Molecules in Warm Carbon Chain Chemistry: The L1527 Case will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1272609