2014ApJ...780...85V


C.D.S. - SIMBAD4 rel 1.7 - 2020.01.25CET14:48:04

2014ApJ...780...85V - Astrophys. J., 780, 85 (2014/January-1)

Organic species in infrared dark clouds.

VASYUNINA T., VASYUNIN A.I., HERBST E., LINZ H., VORONKOV M., BRITTON T., ZINCHENKO I. and SCHULLER F.

Abstract (from CDS):

It is currently assumed that infrared dark clouds (IRDCs) represent the earliest evolutionary stages of high-mass stars (>8 M). Submillimeter and millimeter-wave studies performed over the past 15 yr show that IRDCs possess a broad variety of properties, and hence a wide range of problems and questions that can be tackled. In this paper, we report an investigation of the molecular composition and chemical processes in two groups of IRDCs. Using the Mopra, APEX, and IRAM radio telescopes over the last four years, we have collected molecular line data for CO, H2CO, HNCO, CH3CCH, CH3OH, CH3CHO, CH3OCHO, and CH3OCH3. For all of these species we estimated molecular abundances. We then undertook chemical modeling studies, concentrating on the source IRDC028.34+0.06, and compared observed and modeled abundances. This comparison showed that to reproduce observed abundances of complex organic molecules, a zero-dimensional gas-grain model with constant physical conditions is not sufficient. We achieved greater success with the use of a warm-up model, in which warm-up from 10 K to 30 K occurs following a cold phase.

Abstract Copyright:

Journal keyword(s): ISM: clouds - ISM: molecules - radio lines: ISM - stars: formation

VizieR on-line data: <Available at CDS (J/ApJ/780/85): table1.dat table2.dat table8.dat table9.dat>

Nomenclature: Table 2: [VVH2014] IRDC GLLL.ll-N N=17, [VVH2014] ISOSSJ23053 N=1.

Simbad objects: 53

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Number of rows : 53

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 [KSP2003] J022531.18+620624.5 HII 02 25 31.18 +62 06 24.5           O8V-B0.5V 94 1
2 NAME W3 IRS 5 Y*O 02 25 40.54 +62 05 51.4           B1 324 0
3 NAME [BM89] L1517B cor 04 55 18.8 +30 38 04           ~ 128 0
4 NAME Orion-KL SFR 05 35 14.16 -05 22 21.5           ~ 1961 1
5 M 42 HII 05 35 17.3 -05 23 28           ~ 3682 0
6 AGAL G309.118-00.204 Y*O 13 45 16.775 -62 25 37.25           ~ 9 0
7 AGAL G309.129-00.144 cor 13 45 17.521 -62 22 02.84           ~ 4 0
8 [VLH2011] IRDC G309.13-2 cor 13 45 22.610 -62 23 27.48           ~ 5 0
9 AGAL G309.336-00.644 Y*O 13 47 56.15 -62 48 39.4           ~ 7 0
10 AGAL G309.421-00.621 cor 13 48 38.532 -62 46 17.55           ~ 9 0
11 [VLH2011] IRDC G309.37-3 cor 13 48 39.86 -62 47 23.0           ~ 6 0
12 AGAL G309.911+00.324 Y*O 13 50 54.970 -61 44 21.00           ~ 9 0
13 IRAS 13524-6159 cor 13 56 00.68544 -62 13 58.6416           ~ 4 0
14 AGAL G310.374-00.304 Y*O 13 56 01.359 -62 14 18.29           ~ 9 0
15 MSXDC G313.70-0.31 b cor 14 22 53.158 -61 14 41.00           ~ 3 0
16 MSXDC G313.70-0.31 a cor 14 22 57.151 -61 14 10.84           ~ 3 0
17 AGAL G313.726-00.291 Y*O 14 23 02.720 -61 13 39.64           ~ 4 0
18 [VLH2011] IRDC G313.72-4 cor 14 23 05.39 -61 14 48.5           ~ 5 0
19 MSXDC G316.73+0.07 a cor 14 44 15.400 -59 43 20.00           ~ 3 0
20 AGAL G316.719+00.076 cor 14 44 19.000 -59 44 29.00           ~ 10 0
21 AGAL G316.764-00.012 Y*O 14 44 56.000 -59 48 08.00           ~ 7 0
22 AGAL G316.768-00.026 Y*O 14 45 00.500 -59 48 44.00           ~ 9 0
23 AGAL G317.699+00.124 Y*O 14 51 07.43 -59 16 10.5           ~ 11 0
24 MMB G317.701+00.110 cor 14 51 11.69 -59 17 02.1           ~ 12 0
25 AGAL G317.712+00.092 Y*O 14 51 19.667 -59 17 43.77           ~ 7 0
26 [PLW2012] G321.712+00.065-032.3 cor 15 18 01.065 -57 21 24.48           ~ 3 0
27 SSTGLMC G321.7075+00.0592 Y*O 15 18 01.7 -57 22 07           ~ 9 0
28 AGAL G321.756+00.031 Y*O 15 18 26.387 -57 22 00.14           ~ 15 0
29 LDN 183 MoC 15 54 12.2 -02 49 42           ~ 675 1
30 NAME NGC 6334F (C) HII 17 20 53.45 -35 47 02.6           ~ 201 1
31 NAME Sgr B2 MoC 17 47 20.4 -28 23 07           ~ 1871 1
32 AGAL G010.742-00.126 Y*O 18 09 45.9 -19 42 04           ~ 13 0
33 [VVH2014] IRDC G010.70-4 cor 18 09 58.10 -19 48 43.4           ~ 1 0
34 JCMTSF J181018.2-192431 cor 18 10 18.2 -19 24 31           ~ 3 0
35 [VVH2014] IRDC G011.11-4 cor 18 10 28.30 -19 22 31.5           ~ 1 0
36 [VVH2014] IRDC G011.11-2 cor 18 10 33.50 -19 21 47.0           ~ 1 0
37 AGAL G013.839-00.487 cor 18 17 20.3041 -17 09 33.345           ~ 14 0
38 [VLH2011] IRDC G013.90-1 cor 18 17 33.378 -17 06 36.70           ~ 3 0
39 [PW2010] 45 Y*O 18 17 35.136 -17 06 48.73           ~ 5 0
40 [VVH2014] IRDC G015.05-2 cor 18 17 40.0 -15 48 55           ~ 5 0
41 [VVH2014] IRDC G015.05-3 cor 18 17 50.40 -15 53 37.4           ~ 1 0
42 [VVH2014] IRDC G018.48-8 cor 18 25 14.46 -12 54 08.8           ~ 1 0
43 JCMTSF J182523.2-125450 cor 18 25 23.2 -12 54 50           ~ 3 0
44 [PWC2006] NH3 G19.30+0.07 P1 cor 18 25 58.5 -12 03 59           ~ 6 0
45 [VVH2014] IRDC G028.34-4 cor 18 42 46.60 -04 04 11.5           ~ 1 0
46 NAME Dragon Nebula DNe 18 42 50.6 -04 03 30           ~ 104 0
47 [PWC2006] NH3 G28.34+0.06 P1 cor 18 42 50.9 -04 03 14           ~ 34 0
48 [PWC2006] NH3 G28.34+0.06 P2 cor 18 42 52.4 -03 59 54           ~ 18 0
49 NAME W51 IR Dark Cloud cor 19 21 45.3 +13 49 22           ~ 18 0
50 [VVH2014] IRDC G048.66-1 cor 19 21 49.90 +13 49 34.7           ~ 1 0
51 [CFR2000] G079.3+0.3 P3 cor 20 31 57.1123 +40 18 22.717           ~ 13 0
52 [VVH2014] ISOSS J23053 cor 23 05 21.7 +59 53 43           ~ 1 0
53 IRAS 23032+5937 HII 23 05 23.1 +59 53 53           ~ 34 0

    Equat.    Gal    SGal    Ecl

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2020.01.25-14:48:04

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