1998AJ....116.1708R

Query : 1998AJ....116.1708R

1998AJ....116.1708R - Astron. J., 116, 1708-1718 (1998/October-0)

Infrared observations of ongoing star formation in the 30 Doradus nebula and a comparison with Hubble space telescope WFPC 2 images.

RUBIO M., BARBA R.H., WALBORN N.R., PROBST R.G., GARCIA J. and ROTH M.R.

Abstract (from CDS):

Intercomparisons of ground-based IR continuum and H2 images with Hubble Space Telescope WFPC2 images of the 30 Dor Nebula reveal detailed structural relationships, which provide new information about current star formation there. Numerous stellar IR sources have been discovered in or near the bright nebular filaments west and northeast of R136; their locations are intimately connected with the nebular microstructures, as well as with early O stars in dense nebular knots whose optical spectral classifications indicate extreme youth. The H2 emission predominates in the dust clouds beyond the bright nebulosity and IR sources with respect to R136. The emerging picture suggests that a new stellar generation is being triggered by the energetic activity of the massive central cluster in the remanent interstellar material around its periphery. 30 Dor will likely evolve into a giant shell H II region similar to N11 in the LMC, containing an older association inside an evacuated central cavity, which is surrounded by H II regions ionized by a younger population. Such ``two-stage starbursts'' may be characteristic of massive-star formation on this scale.

Abstract Copyright: ∼

Journal keyword(s): Galaxies: Starburst - ISM: H II Regions - Infrared Radiation - ISM: Individual: Name: 30 Doradus - ISM: Molecules - Galaxies: Magellanic Clouds - Stars: Formation

Nomenclature: Table 1: [RBW98] IRSW NNN N=42 among (Nos 11-267), [RBW98] IRSN NNN N=42 among (Nos 3-172). Table 1, col(7): RRG 30 Dor W IRS Na N=11, RRG 30 Dor N IRS Na N=4.

CDS comments: Cross-id.: P = [P93], knots N = [WB87], RRG = [RRG92] 30 Dor N ou W, P-N = Dor IRS N

Simbad objects: 91

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Number of rows : 91
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 LHA 120-N 11 HII 04 56 51.4 -66 24 24           ~ 275 0
2 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 19090 0
3 Dor IRS 1 IR 05 38 11.6 -69 05 37           ~ 3 0
4 RMC 132 s*b 05 38 14.8983550488 -69 03 48.518049456   12.95 12.90 13.00 12.66 B0.5Ia 23 1
5 [RBW98] IRSW-11 Y*O 05 38 33.09 -69 06 11.8           ~ 8 0
6 RRG 30 Dor W IRS 8a IR 05 38 33.82 -69 05 46.2           ~ 1 0
7 [RBW98] IRSW-24 IR 05 38 34.05 -69 05 45.4           ~ 1 0
8 [RBW98] IRSW-26 IR 05 38 34.30 -69 05 58.7           ~ 4 0
9 2MASS J05383469-6906061 Y*O 05 38 34.5944689488 -69 06 05.909627448   16.79 16.03   15.49 O7-8V 18 0
10 2MASS J05383461-6905569 Y*O 05 38 34.619 -69 05 56.92     18.41   16.75 ~ 17 0
11 [RBW98] IRSW-34 IR 05 38 34.64 -69 06 01.0           ~ 1 0
12 RRG 30 Dor W IRS 1a * 05 38 34.72 -69 06 39.0           ~ 1 0
13 RRG 30 Dor W IRS 1b IR 05 38 34.90 -69 06 37.7           ~ 1 0
14 [RBW98] IRSW-40 IR 05 38 35.00 -69 06 03.6           ~ 1 0
15 RRG 30 Dor W IRS 6 * 05 38 35.20 -69 06 09.4     16.82   15.05 ~ 5 0
16 2MASS J05383522-6906286 NIR 05 38 35.222 -69 06 28.61           ~ 1 0
17 [RBW98] IRSW-53 IR 05 38 35.94 -69 06 25.4           ~ 1 0
18 NAME 30 Dor Nebula SFR 05 38 36.0 -69 05 11           ~ 1276 2
19 RRG 30 Dor W IRS 5b IR 05 38 36.37 -69 06 20.8           ~ 1 0
20 RRG 30 Dor W IRS 5a IR 05 38 36.54 -69 06 22.2           ~ 1 0
21 [P93] 537 * 05 38 36.79 -69 06 24.9           ~ 1 0
22 [P93] 538 s*b 05 38 36.8574625728 -69 06 46.152663408   15.75 15.11   14.19 B0.5Ia+((n))Nwk 15 0
23 [P93] 545 * 05 38 36.93 -69 06 26.3           ~ 1 0
24 RRG 30 Dor W IRS 4b IR 05 38 38.33 -69 06 30.1           ~ 1 0
25 RRG 30 Dor W IRS 4a * 05 38 38.45 -69 06 30.7           ~ 4 0
26 [P93] 647 * 05 38 38.48 -69 06 13.4           ~ 1 0
27 RRG 30 Dor W IRS 4c IR 05 38 38.54 -69 06 32.1           ~ 1 0
28 [RBW98] IRSN-3 IR 05 38 38.68 -69 04 08.3           ~ 1 0
29 [RBW98] IRSW-105 IR 05 38 38.74 -69 05 43.0           ~ 3 0
30 [RBW98] IRSW-115 IR 05 38 39.13 -69 06 13.3           ~ 1 0
31 [P93] 695 * 05 38 39.18 -69 06 34.5           ~ 1 0
32 [P93] 702 * 05 38 39.280 -69 05 52.69   16.78 16.80     O9.5: 9 0
33 [RBW98] IRSW-125 IR 05 38 39.42 -69 05 52.7           ~ 2 0
34 SSTISAGEMA J053839.68-690537.9 MIR 05 38 39.70 -69 05 38.1           ~ 10 0
35 RRG 30 Dor W IRS 2b IR 05 38 39.79 -69 06 35.4           ~ 1 0
36 RRG 30 Dor W IRS 2a IR 05 38 39.97 -69 06 36.7           ~ 1 0
37 [RBW98] IRSN-20 IR 05 38 40.14 -69 05 09.0           ~ 1 0
38 2MASS J05384015-6904067 NIR 05 38 40.150 -69 04 06.78           ~ 1 0
39 [RBW98] IRSW-152 IR 05 38 40.39 -69 06 18.1           ~ 1 0
40 [RBW98] IRSN-28 IR 05 38 40.60 -69 04 27.6           ~ 1 0
41 [P93] 807 * 05 38 40.72 -69 06 04.1           ~ 1 0
42 [RBW98] IRSN-34 IR 05 38 41.07 -69 04 38.7           ~ 1 0
43 [RBW98] IRSW-172 IR 05 38 41.10 -69 05 50.1           ~ 1 0
44 [RBW98] IRSN-43 IR 05 38 41.60 -69 04 46.4           ~ 1 0
45 Brey 76 WR* 05 38 41.8800 -69 06 13.680     12.5     O2If*/WN5 34 1
46 [P93] 911 * 05 38 41.97 -69 06 17.5           ~ 1 0
47 RMC 136 Cl* 05 38 42.396 -69 06 03.36   5.81 5.40     ~ 2236 2
48 [RBW98] IRSN-62 IR 05 38 42.80 -69 04 20.8           ~ 1 0
49 [RBW98] IRSW-220 IR 05 38 42.98 -69 05 57.9           ~ 1 0
50 [P93] 1046 * 05 38 43.32 -69 05 18.2           ~ 1 0
51 [RBW98] IRSN-71 IR 05 38 43.50 -69 05 05.4           ~ 1 0
52 [RBW98] IRSW-244 IR 05 38 43.73 -69 06 00.3           ~ 1 0
53 [RBW98] IRSW-245 IR 05 38 43.75 -69 05 54.6           ~ 1 0
54 [RBW98] IRSN-82 IR 05 38 43.92 -69 04 21.9           ~ 1 0
55 Cl* NGC 2070 MH 859 * 05 38 44.2218 -69 05 56.973   13.67 13.94   13.73 O3III(f+) 28 1
56 Cl* NGC 2070 MH 900 * 05 38 44.4690711816 -69 05 55.583767176     14.84   14.73 O6.5V 12 0
57 [RBW98] IRSW-265 IR 05 38 44.58 -69 06 39.1           ~ 1 0
58 [RBW98] IRSW-267 IR 05 38 44.71 -69 05 59.0           ~ 1 0
59 Cl* NGC 2070 SMB 171 * 05 38 44.970 -69 05 07.69   15.51 15.51   15.61 O9:((n)) 16 0
60 2MASS J05384507-6905086 Y*O 05 38 45.073 -69 05 08.64 14.21 14.73 14.72   14.51 O9V(n)p 19 0
61 [RBW98] IRSN-103 IR 05 38 45.15 -69 05 17.7           ~ 1 0
62 [RBW98] IRSN-104 IR 05 38 45.17 -69 04 42.2           ~ 1 0
63 [RBW98] IRSN-106 IR 05 38 45.58 -69 05 08.6           ~ 1 0
64 [P93] 1264 * 05 38 45.62 -69 05 15.1           ~ 1 0
65 [P93] 1313 * 05 38 45.78 -69 05 07.0           ~ 1 0
66 [RBW98] IRSN-112 IR 05 38 45.83 -69 04 58.5           ~ 1 0
67 [RBW98] IRSN-115 IR 05 38 46.10 -69 04 55.6           ~ 1 0
68 SSTISAGEMA J053846.84-690505.4 MIR 05 38 46.78 -69 05 06.3           ~ 11 0
69 [RBW98] IRSN-125 IR 05 38 46.89 -69 04 41.0           ~ 2 0
70 30Dor-NIC 12d Y*O 05 38 46.93 -69 05 02.5           ~ 12 0
71 [RBW98] IRSN-131 IR 05 38 47.31 -69 04 40.7           ~ 1 0
72 [P93] 1390 * 05 38 47.40 -69 05 01.6           ~ 1 0
73 RRG 30 Dor N IRS 5 * 05 38 47.50 -69 04 38.6           ~ 5 0
74 2MASS J05384767-6904098 NIR 05 38 47.676 -69 04 09.86           ~ 1 0
75 NAME Walborn 2 ** 05 38 48.1018 -69 04 42.239   15.66 15.39     O2V((f*))z 30 0
76 30Dor-NIC 15b IR 05 38 48.11 -69 04 12.2           ~ 7 0
77 RRG 30 Dor N IRS 2 * 05 38 48.20 -69 04 45.5           ~ 4 0
78 [RBW98] IRSN-140 IR 05 38 48.25 -69 04 42.0           ~ 1 0
79 RRG 30 Dor N IRS 6a Y*O 05 38 48.45 -69 04 12.0           ~ 5 0
80 [RBW98] IRSN-146 IR 05 38 48.81 -69 04 41.2           ~ 1 0
81 [RBW98] IRSN-147 IR 05 38 48.86 -69 04 40.0           ~ 1 0
82 VFTS 634 ** 05 38 49.0230004920 -69 04 10.549785972   16.81 16.50     OV 6 0
83 RRG 30 Dor N IRS 7b IR 05 38 49.13 -69 04 12.8           ~ 1 0
84 2MASS J05384921-6904445 Y*O 05 38 49.215 -69 04 44.55           ~ 10 0
85 [RBW98] IRSN-153 IR 05 38 49.44 -69 04 58.7           ~ 1 0
86 [RBW98] IRSN-163 IR 05 38 50.90 -69 05 03.9           ~ 1 0
87 2MASS J05385136-6905206 * 05 38 51.2972209584 -69 05 20.666348016     19.74   18.06 ~ 2 0
88 [RBW98] IRSN-169 IR 05 38 52.60 -69 04 38.1           ~ 7 0
89 2MASS J05385273-6904374 Y*O 05 38 52.7162623728 -69 04 37.575393276           ~ 7 0
90 [RBW98] IRSN-170 IR 05 38 52.91 -69 04 37.6           ~ 3 0
91 [RBW98] IRSN-172 IR 05 38 53.34 -69 04 10.3           ~ 1 0

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