2003A&A...406..817I

Query : 2003A&A...406..817I

2003A&A...406..817I - Astronomy and Astrophysics, volume 406817-828 (2003/8-2)

Results of the ESO-SEST Key Programme on CO in the Magellanic Clouds. X. CO emission from star formation regions in LMC and SMC.

ISRAEL F.P., JOHANSSON L.E.B., RUBIO M., GARAY G., DE GRAAUW T., BOOTH R.S., BOULANGER F., KUTNER M.L., LEQUEUX J. and NYMAN L.-A.

Abstract (from CDS):

We present J=1-0 and J=2-1 ¹²CO maps of several star-forming regions in both the Large and the Small Magellanic Cloud, and briefly discuss their structure. Many of the detected molecular clouds are relatively isolated and quite small with dimensions of typically 20pc. Some larger complexes have been detected, but in all cases the extent of the molecular clouds sampled by CO emission is significantly less than the extent of the ionized gas of the star-formation region. Very little diffuse extended CO emission was seen; diffuse CO in between or surrounding the detected discrete clouds is either very weak or absent. The majority of all LMC lines of sight detected in ¹³CO has an isotopic emission ratio I(¹²CO)/I(¹³CO) of about 10, i.e. twice higher than found in Galactic star-forming complexes. At the lowest ¹²CO intensities, the spread of isotopic emission ratios rapidly increases, low ratios representing relatively dense and cold molecular gas and high ratios marking CO photo-dissociation at cloud edges.

Abstract Copyright: ∼

Journal keyword(s): galaxies: Magellanic Clouds - galaxies: ISM - galaxies: irregular - galaxies: Local Group - ISM: molecules

Simbad objects: 108

Full paper

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Number of rows : 108

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	IRAS 00435-7339	IR	00 45 20.5	-73 23 05						~	8	0
2	LHA 115-N 13B	Em*	00 45 22.6523355840	-73 22 34.011171444		14.38	14.22	14.83	14.92	~	17	0
3	NGC 248	Cl*	00 45 24.07	-73 22 44.4						~	49	0
4	[FBR2002] J004523-732250	Rad	00 45 25.10	-73 22 54.9						~	3	0
5	LHA 115-N 13A	EB*	00 45 25.8239811792	-73 23 00.691598976		13.88	13.47		14.65	~	21	1
6	[MA93] 121	Em*	00 46 10.9454117232	-73 25 35.601953880		15.448	15.439		15.407	O	19	0
7	LHA 115-N 16	Em*	00 46 19.8	-73 23 33						~	25	0
8	[FBR2002] J004619-732324	Rad	00 46 21.00	-73 23 19.1						~	3	0
9	NGC 261	HII	00 46 31.5	-73 06 16						~	67	1
10	[FBR2002] J004633-730604	Rad	00 46 34.8	-73 05 50						~	5	1
11	NGC 267	HII	00 48 02.6	-73 16 39						~	57	0
12	LHA 115-N 26	PN	00 48 08.624	-73 14 54.62	14.70	15.22	14.31		14.57	~	61	1
13	DEM S 38	HII	00 48 09.1	-73 14 09						~	18	0
14	[FBR2002] J004823-730557	Rad	00 48 23.68	-73 05 57.2						~	3	0
15	LHA 115-N 27	Em*	00 48 24.0	-73 05 50						~	62	0
16	NAME SMC	G	00 52 38.0	-72 48 01		2.79	2.2			~	12317	1
17	NGC 346	Cl*	00 59 04.4000	-72 10 39.000						~	547	0
18	SNR B0057-72.2	SNR	00 59 27.40	-72 10 10.7		12.37	12.57			~	251	0
19	LI-SMC 135	IR	00 59 46.5	-72 08 51						~	2	0
20	LI-SMC 137	IR	00 59 52.5	-72 07 51						~	2	0
21	PKS 0057-724	Rad	01 00 27	-72 11.0						~	19	1
22	NGC 456	HII	01 13 44.4	-73 17 26						~	132	0
23	LHA 115-N 83A	EmO	01 13 49.81	-73 18 01.4						~	64	0
24	LHA 115-N 83C	SNR	01 14 00.0	-73 17 08						~	72	0
25	[FBR2002] J011416-731549	Rad	01 14 16.92	-73 15 49.3						~	3	0
26	LHA 115-N 84C	Em*	01 14 17.17	-73 15 49.4		14.65	14.4		15.039	O9V	35	0
27	NAME SMC B0113-7334	Rad	01 14 25.6	-73 19 10						~	14	1
28	LHA 115-N 84	HII	01 14 27.7	-73 12 51						~	68	0
29	DEM S 152	HII	01 14 54.1	-73 19 45						~	14	1
30	LHA 115-N 88A	HII	01 24 07.823	-73 09 03.77		13.25	12.18			~	83	1
31	PMN J0124-7309	Rad	01 24 07.9	-73 09 04						~	13	2
32	LHA 115-N 88	HII	01 24 08.1	-73 09 04						~	72	1
33	NAME Magellanic Clouds	GrG	03 00	-71.0						~	7988	0
34	DEM L 8	HII	04 52 07.63	-66 55 18.1						~	23	1
35	NGC 1714	EmO	04 52 08.4	-66 55 23		11.51	11.61			~	88	2
36	PKS J0454-6911	Rad	04 54 03.6	-69 11 55						~	9	1
37	NGC 1737	HII	04 54 06.5	-69 11 26						~	13	0
38	LHA 120-N 83	HII	04 54 15	-69 10.6						~	43	0
39	LI-LMC 173	IR	04 54.8	-69 14						~	2	0
40	SNR J045447-662528	SNR	04 54 48.00	-66 25 42.0						~	111	0
41	LI-LMC 193	IR	04 55 20.2	-69 06 21						~	1	0
42	IRAS 04555-6632	IR	04 55 39.3	-66 27 45						~	5	0
43	LI-LMC 192	IR	04 55 40.3	-66 34 22						~	2	0
44	NGC 1760	HII	04 56 20.8	-66 32 13						~	32	0
45	IRAS 04562-6641	Y*O	04 56 22.5808096728	-66 36 56.628488700	19.213	19.595	18.667	17.830	17.209	~	11	0
46	DEM L 34	HII	04 56 34.3	-66 26 52						~	103	0
47	NGC 1763	As*	04 56 51.5	-66 24 25			9.40			~	169	3
48	LI-LMC 217	HII	04 56 57.5	-66 24 29						~	13	1
49	IRAS 04571-6627	mul	04 57 15.5	-66 23 14						~	53	1
50	HD 32340	Em*	04 57 16.253	-66 23 20.94		13.11	12.45	14.00		O3-O6V	78	0
51	LI-LMC 229	IR	04 57 27.3	-66 19 21						~	2	0
52	NGC 1769	As*	04 57 44.5	-66 27 42						~	73	1
53	NGC 1773	HII	04 58 12.0	-66 21 36						~	55	1
54	PMN J0458-6611	Rad	04 58 38.6	-66 12 20						~	7	1
55	LI-LMC 266	IR	04 58 46.7	-66 09 52						~	3	0
56	IRAS 04587-6611	Y*O	04 58 54.334	-66 07 18.77						~	12	0
57	NAME LMC	G	05 23 34.6	-69 45 22			0.4			~	19090	0
58	LHA 120-N 57B	EmO	05 32 06.9481511712	-67 46 24.062458476						~	10	0
59	NAME LMC B0532-6629	Rad	05 32 18.6	-66 27 07						~	10	1
60	NGC 2014	As*	05 32 24	-67 41.3		9.17	8.97			~	77	0
61	LHA 120-N 55A	SFR	05 32 28	-66 28.0						~	29	0
62	LHA 120-N 57A	HII	05 32 28.2	-67 42 11						~	52	1
63	IRAS 05324-6619	FIR	05 32 31.9	-66 17 17						~	3	0
64	LHA 120-N 55	EmO	05 32 32.9	-66 24 20						~	46	0
65	NGC 2020	EmO	05 33 10.6	-67 42 45						~	34	0
66	MDM 55	Rad	05 33 18.5	-67 39 59						~	9	0
67	NGC 2029	SNR	05 35 15.5	-67 34 04			12.29			~	108	0
68	NGC 2032	HII	05 35 23.5	-67 34 56						~	75	1
69	IRAS 05355-6736	*	05 35 23.64	-67 34 56.6						~	9	0
70	NGC 2035	ISM	05 35 32	-67 35.1			10.99			~	11	0
71	NGC 2040	As*	05 36 00.7	-67 34 57			11.47			~	56	1
72	NGC 2060	SNR	05 37 51.4466169456	-69 10 23.947092084		9.69	9.59			~	380	2
73	NAME 30 Dor Nebula	SFR	05 38 36.0	-69 05 11						~	1276	2
74	PKS J0538-6904	HII	05 38 42.5	-69 05 34						~	20	2
75	LI-LMC 1486	IR	05 38 55.6	-70 13 43						~	2	0
76	NGC 2074	As*	05 39 03	-69 29.9						~	66	0
77	NGC 2081	HII	05 39 11.8	-69 30 16						~	54	1
78	LHA 120-N 171A	HII	05 39 14.1	-70 12 39						~	11	0
79	LI-LMC 1505	IR	05 39.5	-71 09						~	2	0
80	DEM L 269	HII	05 39 31.1	-69 27 31						~	26	0
81	LI-LMC 1501	IR	05 39 34.6	-69 45 34						~	7	1
82	NGC 2079	Cl*	05 39 39.0	-69 46 24						~	64	0
83	NGC 2080	HII	05 39 42.6	-69 38 50						~	100	0
84	LHA 120-N 160	EmO	05 39 47.9	-69 37 08						~	128	1
85	DEM L 274	HII	05 39 54.0	-71 09 44						~	7	0
86	LHA 120-N 214A	Rad	05 39 54.7	-71 10 00						~	12	1
87	PKS J0539-6944	HII	05 39 58.4	-69 45 00						~	14	1
88	LHA 120-N 159L	HII	05 40 03.4	-69 49 14						~	12	0
89	IRAS 05405-6946	LP*	05 40 05.4078687744	-69 44 44.185688916			17.234	16.07	15.343	~	20	0
90	DEM L 271	HII	05 40 06.8	-69 45 28						~	20	0
91	LHA 120-N 214E	HII	05 40 10.1	-71 12 26						~	13	0
92	LI-LMC 1541	IR	05 40 37.1	-70 10 40						~	3	0
93	LI-LMC 1549	IR	05 40.8	-69 46						~	3	0
94	LHA 120-N 176	HII	05 40 48.5	-70 10 06						~	12	0
95	DEM L 283	HII	05 40 50.8	-69 46 08						~	8	0
96	PKS J0541-7119	Rad	05 41 36.20	-71 19 22.0						~	8	1
97	NGC 2103	As*	05 41 38.1	-71 19 49			10.82			~	58	0
98	IRAS 05433-6728	pA*	05 43 10.8536136480	-67 27 28.199391336	18.680	16.902	15.113		13.074	M0	13	0
99	LHA 120-N 72	EmO	05 43 35.8	-66 18 13			12.98			~	14	0
100	PMN J0543-6918	Rad	05 43 37.2	-69 17 49						~	16	0
101	IRAS 05442-6923	IR	05 43 54.2	-69 22 09						~	2	0
102	LHA 120-N 167	HII	05 44 24.2	-69 22 43						~	20	0
103	LHA 120-N 169C	HII	05 46 05.8	-69 33 28						~	12	0
104	PMN J0546-6934	Rad	05 46 11	-69 34.4						~	5	0
105	LHA 120-N 169A	HII	05 46 33.9	-69 34 22						~	13	0
106	LI-LMC 248	IR	~	~						~	2	0
107	LI-LMC 268	IR	~	~						~	2	0
108	LI-LMC 195	IR	~	~						~	2	0

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