2003ApJ...590..314R


Query : 2003ApJ...590..314R

2003ApJ...590..314R - Astrophys. J., 590, 314-332 (2003/June-2)

A survey of acetic acid toward hot molecular cores.

REMIJAN A., SNYDER L.E., FRIEDEL D.N., LIU S.-Y. and SHAH R.Y.

Abstract (from CDS):

We have surveyed 12 Galactic hot molecular cores for interstellar acetic acid (CH3COOH). This is the most extensive search for acetic acid to date. We have detected a new source of acetic acid toward the high-mass hot molecular core source G34.3+0.2. Using a temperature range between 70 and 185 K, we find a CH3COOH column density range of (0.77-1.64)x1015 cm–2 toward G34.3+0.2. This gives a relative CH3COOH/HCOOCH3abundance ratio of ∼3.3x10–2, which is comparable to the abundance ratio of (3-6)x10–2 found toward Sgr B2(N-LMH) and W51e2 by Remijan and colleagues. All currently known acetic acid sources are within 7 kpc of the Galactic center. Furthermore, our survey suggests that hot molecular cores that have a mass range between 200 and 2000 Mand do not show a distinct differentiation between O and N chemistry may be the best places to search for acetic acid and the structurally similar biologically important molecule glycine.

Abstract Copyright:

Journal keyword(s): Astrochemistry - ISM: Abundances - ISM: individual: G34.3+0.2 - ISM: Individual: Alphanumeric: IRAS 16293-2422 - ISM: individual: L1448-C - ISM: individual:M17-SW - ISM: Individual: NGC Number: NGC 1333 IRAS 4 - ISM: individual:NGC 2024 FIR 5 - ISM: individual:Orion KL - ISM: individual:Serpens SMM 1 - ISM: Individual: Alphanumeric: W3 - ISM: individual:W49 A - ISM: Molecules

CDS comments: Parag. 2.1.10 : coordinates for W 49A are B1950

Simbad objects: 40

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Number of rows : 40
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
#notes
1 NAME W 3 OH HII 02 27 04.1 +61 52 22           ~ 990 2
2 W 3 MoC 02 27 04.10 +61 52 27.1           ~ 1005 3
3 W 3(H2O) Mas 02 27 04.6 +61 52 25           ~ 137 0
4 4C 67.05 QSO 02 28 50.0509728096 +67 21 03.034681488   19.5   18.1   ~ 241 1
5 4C 28.07 QSO 02 37 52.4057664048 +28 48 08.990026884     18.5 16.99   ~ 559 1
6 [SDA2014] West4 Y*O 03 25 38.83 +30 44 06.2           ~ 250 1
7 IRAS F03226+3033 Y*O 03 25 38.83 +30 44 06.2           ~ 325 0
8 NAME [BM89] L1450D DNe 03 28 36.8 +31 15 20           ~ 51 0
9 [JCC87] IRAS 4A Y*O 03 29 10.49 +31 13 30.8           ~ 678 1
10 [JCC87] IRAS 4 FIR 03 29 10.9 +31 13 26           ~ 474 0
11 [JCC87] IRAS 4B Y*O 03 29 12.058 +31 13 02.05           ~ 586 0
12 LDN 1450 DNe 03 29.6 +31 20           ~ 59 0
13 QSO J0530+13 Bla 05 30 56.4168902136 +13 31 55.151893344     20.0 19.35   ~ 916 1
14 NAME OMC1 Ridge reg 05 35 13.4 -05 23 07           ~ 126 0
15 NAME Orion-KL SFR 05 35 14.16 -05 22 21.5           ~ 2176 1
16 NAME Orion Core ? 05 35 14.5 -05 22 30           ~ 191 0
17 M 42 HII 05 35 17.3 -05 23 28           ~ 3935 0
18 NAME Ori A MoC 05 38 -07.1           ~ 2868 0
19 [MCK88] NGC 2024 FIR 1 FIR 05 41 41.40 -01 53 47.0           ~ 36 0
20 [MCK88] NGC 2024 FIR 2 Y*? 05 41 42.50 -01 54 06.0           ~ 38 0
21 [MCK88] NGC 2024 FIR 3 Y*O 05 41 43.00 -01 54 24.0           ~ 52 0
22 [MCK88] NGC 2024 FIR 4 Y*O 05 41 44.00 -01 54 42.0           ~ 54 0
23 [MCK88] NGC 2024 FIR 5 cor 05 41 44.6 -01 55 38           ~ 93 0
24 [MCK88] NGC 2024 FIR 7 cor 05 41 44.90 -01 56 15.0           ~ 33 0
25 [MCK88] NGC 2024 FIR 6 IR 05 41 45.00 -01 56 01.0           ~ 54 0
26 QSO B0607-157 QSO 06 09 40.9493089944 -15 42 40.667570496   18.47 18.0 19.90   ~ 299 1
27 QSO B1622-253 QSO 16 25 46.8886080600 -25 27 38.336613804   21.3 20.6 19.60   ~ 323 1
28 IRAS 16293-2422 cor 16 32 22.56 -24 28 31.8           ~ 1177 1
29 QSO B1730-130 QSO 17 33 02.7055087032 -13 04 49.545516612   18 18.5 18.78 17.39 ~ 1072 1
30 NAME Galactic Center reg 17 45 39.60213 -29 00 22.0000           ~ 13190 0
31 NAME Sgr A* X 17 45 40.03599 -29 00 28.1699           ~ 3954 3
32 NAME Large Molecule Heimat MoC 17 47 20.4943 -28 22 11.656           ~ 120 0
33 NAME M 17 SW SFR 18 20 23.1 -16 11 43           ~ 265 0
34 NGC 6618 OpC 18 20 47 -16 10.3           ~ 1561 0
35 NAME SH 2-68 FIR 1 cor 18 29 49.63 +01 15 21.9           ~ 258 2
36 ICRF J183005.9+061915 QSO 18 30 05.9396879976 +06 19 15.941284320       19.5   ~ 89 1
37 OH 34.26 +0.15 SFR 18 53 18.54 +01 14 57.9           ~ 484 0
38 W 49a SFR 19 10 15.7 +09 06 05           ~ 282 2
39 W 51e2 HII 19 23 43.906 +14 30 34.48           ~ 200 0
40 NAME Cepheus A SFR 22 56 17.9 +62 01 49           ~ 721 2

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2022.09.29-16:16:29

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