1998A&A...331..857J

Query : 1998A&A...331..857J

1998A&A...331..857J - Astronomy and Astrophysics, volume 331857-872 (1998/3-3)

Results of the SEST key programme: CO in the Magellanic Clouds. VII. 30 Doradus and its southern H II regions.

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

Abstract (from CDS):

We have mapped the 12CO(1-0) emission from the 30 Doradus region in the Large Magellanic Cloud with the Swedish-ESO Submillimetre Telescope (SEST). The regions investigated include the central part of the 30 Dor nebula, and the southern H II regions N 158C, N 159, and N 160. In addition, a few prominent CO clouds have been studied in the (2-1) and (3-2) transitions of CO. The southern area shows the strongest 12CO(1-0) emission, a factor of 3 higher than towards the central part of 30 Dor. A non-LTE analysis of the CO emission from a sample of clouds indicate kinetic temperatures between 10 and 50 K; the highest temperatures are found close to the 30 Dor nebula. We have estimated the CO-H2 conversion factor for the two areas, separately, under the assumption that the virial mass, determined from CO parameters, reflects the total molecular mass. We find an unexpectedly small difference between the two areas. This is explained as a bias effect.

Abstract Copyright: ∼

Journal keyword(s): galaxies: individual: LMC - Magellanic Clouds - galaxies: ISM - galaxies: irregular - ISM: molecules - ISM: clouds

Nomenclature: Table 1: [JGB98] 30 Dor-NN (Nos 1-33), [JGB98] N158-N (Nos 1-5), [JGB98] N160-N (Nos 1-6), [JGB98] N159-W (Nos E, W, S), [JGB98] N159-N (Nos 1-3).

Simbad objects: 68

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Number of rows : 68
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 NAME Magellanic Clouds GrG 03 00 -71.0           ~ 7988 0
2 NGC 1569 rG 04 30 49.186 +64 50 52.52 11.72 11.86 11.03     ~ 1297 3
3 NGC 1705 Sy2 04 54 13.4661493464 -53 21 39.471592428 12.32 12.96 12.56 12.58 12.9 ~ 692 1
4 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 19090 0
5 [JGB98] 30 Dor-26 MoC 05 35 34.0 -69 12 23           ~ 3 0
6 [JGB98] 30 Dor-28 MoC 05 35 42.0 -69 13 08           ~ 3 0
7 [JGB98] 30 Dor-25 MoC 05 35 42.0 -69 09 38           ~ 4 0
8 [JGB98] 30 Dor-27 MoC 05 35 48.9 -69 12 46           ~ 5 0
9 NAME 30 Dor C Superbubble Rad 05 35 50.8 -69 12 22           ~ 54 0
10 [JGB98] 30 Dor-08 MoC 05 35 52.0 -69 02 16           ~ 1 0
11 [JGB98] 30 Dor-04 MoC 05 36 10.7 -69 01 14           ~ 1 0
12 [JGB98] 30 Dor-07 MoC 05 36 12.1 -69 02 04           ~ 1 0
13 [JGB98] 30 Dor-03 MoC 05 36 35.9 -68 59 45           ~ 1 0
14 [JGB98] 30 Dor-30 MoC 05 36 38.0 -69 14 01           ~ 1 0
15 [JGB98] 30 Dor-02 MoC 05 36 40.8 -68 57 19           ~ 1 0
16 [JGB98] 30 Dor-09 MoC 05 36 50.1 -69 04 02           ~ 1 0
17 [JGB98] 30 Dor-29 MoC 05 36 53.9 -69 13 36           ~ 1 0
18 [JGB98] 30 Dor-11 MoC 05 37 08.3 -69 06 13           ~ 1 0
19 [JGB98] 30 Dor-24 MoC 05 37 21.3 -69 12 51           ~ 1 0
20 MSX LMC 1786 LP* 05 37 28.067 -69 08 47.98           ~ 11 0
21 [JGB98] 30 Dor-23 MoC 05 37 31.7 -69 12 21           ~ 1 0
22 [JGB98] 30 Dor-22 MoC 05 37 47.3 -69 11 00           ~ 2 0
23 [JGB98] 30 Dor-18 MoC 05 37 55.3 -69 09 21           ~ 1 0
24 Dor IRS 1 IR 05 38 11.6 -69 05 37           ~ 3 0
25 2MASS J05381396-6907477 SB* 05 38 13.9613816664 -69 07 47.728274376   13.44 13.49     O3.5III(f) 23 0
26 RMC 132 s*b 05 38 14.8983550488 -69 03 48.518049456   12.95 12.90 13.00 12.66 B0.5Ia 23 1
27 [JGB98] 30 Dor-13 MoC 05 38 28.5 -69 06 25           ~ 4 0
28 [JGB98] 30 Dor-06 MoC 05 38 30.7 -69 02 06           ~ 15 1
29 [JGB98] 30 Dor-33 MoC 05 38 31.3 -69 16 43           ~ 1 0
30 2MASS J05383167-6902146 Y*O 05 38 31.678 -69 02 14.61           ~ 14 1
31 [MMM2008] 30 Dor 2 MoC 05 38 32.2 -69 06 21           ~ 7 0
32 2MASS J05383461-6905569 Y*O 05 38 34.619 -69 05 56.92     18.41   16.75 ~ 17 0
33 NAME 30 Dor Nebula SFR 05 38 36.0 -69 05 11           ~ 1276 2
34 [JGB98] 30 Dor-15 MoC 05 38 38.7 -69 07 27           ~ 2 0
35 [JGB98] 30 Dor-31 MoC 05 38 41.8 -69 14 34           ~ 1 0
36 RMC 136 Cl* 05 38 42.396 -69 06 03.36   5.81 5.40     ~ 2236 2
37 [JGB98] 30 Dor-01 MoC 05 38 50.6 -68 54 13           ~ 1 0
38 [MMM2008] 30 Dor 1 MoC 05 38 50.8 -69 04 15           ~ 29 0
39 [JGB98] N158-4 MoC 05 38 52.5 -69 34 30           ~ 1 0
40 [JGB98] N158-3 MoC 05 38 55.7 -69 31 04           ~ 2 0
41 [JGB98] 30 Dor-32 MoC 05 38 55.7 -69 15 39           ~ 1 0
42 [JGB98] N158-5 MoC 05 38 56.5 -69 34 47           ~ 2 0
43 [JGB98] N158-1 MoC 05 39 07.5 -69 29 51           ~ 1 0
44 LHA 120-N 158 HII 05 39 11.220 -69 30 13.65           ~ 93 0
45 NGC 2081 HII 05 39 11.8 -69 30 16           ~ 54 1
46 [JGB98] 30 Dor-19 MoC 05 39 14.8 -69 09 48           ~ 1 0
47 2MASS J05391587-6930384 MoC 05 39 15.87 -69 30 38.4           ~ 6 0
48 [JGB98] 30 Dor-16 MoC 05 39 16.4 -69 07 32           ~ 1 0
49 [JGB98] 30 Dor-05 MoC 05 39 18.4 -69 01 44           ~ 1 0
50 [JGB98] N160-5 MoC 05 39 27.7 -69 39 55           ~ 2 0
51 [JGB98] N159-2 MoC 05 39 27.9 -69 46 48           ~ 3 0
52 [JGB98] 30 Dor-14 MoC 05 39 29.2 -69 06 31           ~ 1 0
53 [JGB98] 30 Dor-21 MoC 05 39 34.5 -69 10 51           ~ 1 0
54 [MMM2008] N159 1 MoC 05 39 35.1 -69 45 25           ~ 7 0
55 [JGB98] 30 Dor-20 MoC 05 39 39.9 -69 10 49           ~ 1 0
56 [JGB98] N160-4 MoC 05 39 40.3 -69 39 01           ~ 4 0
57 NGC 2080 HII 05 39 42.6 -69 38 50           ~ 100 0
58 LHA 120-N 159 HII 05 39 46.650 -69 45 39.94           ~ 293 2
59 LHA 120-N 160 EmO 05 39 47.9 -69 37 08           ~ 128 1
60 [JGB98] N160-2 MoC 05 39 54.6 -69 37 35           ~ 2 0
61 [MMM2008] N159 4 MoC 05 39 58.7 -69 50 29           ~ 6 0
62 [JGB98] N160-1 MoC 05 40 01.2 -69 37 33           ~ 4 0
63 [JGB98] N159-3 MoC 05 40 04.5 -69 51 40           ~ 3 0
64 [JGB98] N160-3 MoC 05 40 04.7 -69 38 17           ~ 2 0
65 [MMM2008] N159 2 MoC 05 40 08.4 -69 44 47           ~ 5 0
66 [JGB98] N160-6 MoC 05 40 50.5 -69 44 38           ~ 2 0
67 [JGB98] N159-1 MoC 05 41 02.3 -69 46 11           ~ 2 0
68 M 82 AGN 09 55 52.430 +69 40 46.93 9.61 9.30 8.41     ~ 6156 6

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