2017MNRAS.467.3525M

Query : 2017MNRAS.467.3525M

2017MNRAS.467.3525M - Mon. Not. R. Astron. Soc., 467, 3525-3532 (2017/May-3)

A study of singly deuterated cyclopropenylidene c-C3HD in the protostar IRAS 16293-2422.

MAJUMDAR L., GRATIER P., ANDRON I., WAKELAM V. and CAUX E.

Abstract (from CDS):

Cyclic-C3HD (c-C3HD) is a singly deuterated isotopologue of c-C3H2, which is one of the most abundant and widespread molecules in our Galaxy. We observed IRAS 16293-2422 in the 3-mm band with a single frequency set-up using the EMIR heterodyne 3 mm receiver of the IRAM 30-m telescope. We observed seven lines of c-C3HD and three lines of c-C3H2. Observed abundances are compared with astrochemical simulations using the NAUTILUS gas-grain chemical model. Assuming that the size of the protostellar envelope is 3000 au and assuming the same excitation temperatures for both c-C3H2 and c-C3HD, we obtain a deuterium fraction of 14–3+4 per cent.

Abstract Copyright: © 2017 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): astrochemistry - methods: statistical - ISM: abundances - ISM: evolution - ISM: molecules - ISM: molecules

Simbad objects: 4

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Number of rows : 4
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 Barnard 220 DNe 04 41 38.8 +26 00 42           ~ 137 0
2 TMC-1 MoC 04 41 45.9 +25 41 27           ~ 1676 0
3 LDN 1544 DNe 05 04 16.6 +25 10 48           ~ 863 0
4 IRAS 16293-2422 cor 16 32 22.56 -24 28 31.8           ~ 1252 1

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