2022MNRAS.512.4934L

Query : 2022MNRAS.512.4934L

2022MNRAS.512.4934L - Mon. Not. R. Astron. Soc., 512, 4934-4947 (2022/June-1)

Deuterated ammonia in Galactic massive star-forming regions.

LI Y., WANG J., LI J., LIU S. and LUO Q.

Abstract (from CDS):

We present sensitive observations of NH2D 111a-101s at 110.153 599 GHz toward 50 Galactic massive star-forming regions with the Institut de Radioastronomie Millimetrique (IRAM) 30-m telescope. The NH2D 111a-101s transition is detected toward 36 objects, yielding a detection rate of 72 per cent. Column densities of NH2D, HC3N, and C18O for each source are derived by assuming local thermal equilibrium conditions with a fixed excitation temperature. The deuterium ratio of NH3, defined as the abundance ratio of NH2D to NH3, for 19 sources is also obtained with the NH3 information from the literature. The range of deuterium fractionation bends to be large in the late-stage star-forming regions in this work, with the value from 0.043 to 0.0006. The highest deuterium ratio of NH3 is 0.043 in G081.75+00.78 (DR21). We also find that the deuterium ratio of NH3 increases with Galactocentric distance and decreases with line width.

Abstract Copyright: © 2022 The Author(s) Published by Oxford University Press on behalf of Royal Astronomical Society

Journal keyword(s): stars: formation - stars: massive - ISM: abundances - ISM: molecules

Simbad objects: 64

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Number of rows : 64
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 LDN 1287 DNe 00 36 47.5 +63 29 02           ~ 103 0
2 NGC 281 HII 00 52 25.1 +56 33 54           ~ 251 1
3 NAME W 3 OH HII 02 27 04.1 +61 52 22           ~ 1064 2
4 LDN 1489N DNe 04 04 47.6 +26 19 21           ~ 4 0
5 IRAS 05137+3919 Cld 05 17 13.3 +39 22 14           ~ 75 0
6 M 42 HII 05 35 16.8 -05 23 15           ~ 4411 0
7 NGC 1985 RNe 05 37 47.8 +31 59 24           ~ 145 2
8 IRAS 05373+2349 Y*O 05 40 24.2280641304 +23 50 54.705306336           ~ 68 1
9 RAFGL 5180 SFR 06 08 54.1 +21 38 25           ~ 125 0
10 NGC 2175 OpC 06 09 39 +20 29.2   7.0 6.8     ~ 270 3
11 IC 2162 HII 06 13 04.1 +17 58 44           ~ 372 2
12 RCW 7 HII 07 32 09.59 -16 58 12.3           ~ 56 0
13 NAME Sgr B2 MoC 17 47 20.4 -28 23 07           ~ 2443 1
14 GAL 000.67-00.03 HII 17 47 20.5 -28 23 19           ~ 9 0
15 RAFGL 2046 HII 18 00 32.1 -24 04 03           ~ 380 0
16 GAL 009.62+00.19 HII 18 06 13.9 -20 31 44           ~ 226 0
17 MMB G010.472+00.027 cor 18 08 38.2290 -19 51 50.262           ~ 83 1
18 AGAL G010.614-00.331 Y*O 18 10 15.62 -19 54 46.6           ~ 21 0
19 W 31 SFR 18 10 28.6 -19 55 51           ~ 280 0
20 W 31c HII 18 10 29.1 -19 56 05           ~ 357 0
21 GAL 012.89+00.49 HII 18 11 51.3 -17 31 29           ~ 217 0
22 EGO G011.92-0.61 of? 18 13 58.1 -18 54 17           ~ 54 0
23 W 33 SFR 18 14 14.0 -17 55 50           ~ 292 0
24 GAL 012.90-00.24 Mas 18 14 34.4366 -17 51 51.891           ~ 13 0
25 W 33a Y*O 18 14 39.56547 -17 52 02.2260           ~ 746 0
26 IRAS 18134-1942 HII 18 16 22.1327 -19 41 27.219           ~ 72 0
27 GAL 014.33-00.64 HII 18 18 53.5 -16 47 39           ~ 75 0
28 GAL 015.03-00.67 Mas 18 20 22.3 -16 11 18           ~ 15 0
29 NGC 6618 OpC 18 20 47 -16 10.3           ~ 1700 0
30 AGAL G016.586-00.051 cor 18 21 09.067 -14 31 49.18           ~ 39 0
31 SCAMPS G18.17-0.30 smm 18 25 07.53 -13 14 32.7           ~ 2 0
32 EGO G023.01-0.41 of? 18 34 40.2 -09 00 38           ~ 24 0
33 GAL 023.44-00.18 HII 18 34 43.6 -08 32 25           ~ 58 0
34 AGAL G027.366-00.166 cor 18 41 51 -05 01.7           ~ 28 0
35 GAL 028.86-00.07 HII 18 43 45.8 -03 35 30           ~ 30 0
36 GAL 029.95-00.01 ? 18 46 01.46 -02 39 33.7           ~ 9 0
37 W 43s Rad 18 47 41.68 -02 00 24.3           ~ 30 0
38 NAME W 43 Main 3 reg 18 47 47.0 -01 54 35           ~ 7 0
39 [KJB2003] G31.279+0.063 HII 18 48 11.94 -01 26 30.8           ~ 18 1
40 AGAL G032.044+00.059 cor 18 49 36.6 -00 45 49           ~ 48 0
41 EGO G034.39+0.22 of? 18 53 19.0 +01 24 08           ~ 12 0
42 GAL 035.03+00.35 cor 18 54 00.60 +02 01 19.3           ~ 48 0
43 IRAS 18517+0437 SFR 18 54 13.8 +04 41 32           ~ 89 0
44 GAL 035.2-00.74 cor 18 58 13.00 +01 40 36.0           ~ 176 0
45 GAL 035.20-01.74 Y*O 19 01 46.49 +01 13 24.7           ~ 78 1
46 W 49n HII 19 10 13.2 +09 06 12           ~ 497 3
47 OH 043.796-00.127 Mas 19 11 53.9868 +09 35 50.325           ~ 89 0
48 IRAS 19095+0930 cor 19 11 54.09216 +09 35 49.6896           ~ 115 0
49 AGAL G049.489-00.369 cor 19 23 40 +14 31.1           ~ 15 0
50 [WBN74] W 51 IRS 2 SFR 19 23 39.93 +14 31 09.4           ~ 321 0
51 W 51m Rad 19 23.7 +14 30           ~ 72 0
52 AGAL G049.489-00.389 cor 19 23 44.15 +14 30 29.5           ~ 23 0
53 IRAS 19410+2336 SFR 19 43 11.5 +23 44 06           ~ 160 0
54 Onsala 1 cor 20 10 09.2036 +31 31 36.090           ~ 194 0
55 IRAS 20126+4104 Y*O 20 14 25.8816769656 +41 13 36.879427236           B2.5-B0.5 469 0
56 GAL 075.76+00.34 Mas 20 21 41.0860 +37 25 29.280           ~ 30 1
57 NAME Cyg X FIR 33 Y*O 20 38 35.9 +42 37 22           B1.5 423 1
58 DR 21 SFR 20 39 01.6 +42 19 38           O4.5 1121 0
59 [HLB98] Onsala 150 Mas 21 09 21.7320 +52 22 37.080           ~ 10 0
60 NAME Cepheus A SFR 22 56 17.9 +62 01 49           ~ 760 2
61 GAL 109.87+02.11 Mas 22 56 18.1 +62 01 46           ~ 12 0
62 NGC 7538 OpC 23 13 37 +61 30.0           ~ 920 1
63 [WBN74] NGC 7538 IRS 1 Y*O 23 13 45.318 +61 28 11.69           ~ 433 3
64 GAL 031.58+00.07 ? ~ ~           ~ 7 0

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