2003ApJS..149..343E

Query : 2003ApJS..149..343E

2003ApJS..149..343E - Astrophys. J., Suppl. Ser., 149, 343-363 (2003/December-0)

Giant molecular clouds in M33. I. BIMA all-disk survey.

ENGARGIOLA G., PLAMBECK R.L., ROSOLOWSKY E. and BLITZ L.

Abstract (from CDS):

We present the first interferometric 12CO (J=1⟶0) map of the entire Hα disk of M33. The 13" diameter synthesized beam corresponds to a linear resolution of 50 pc, sufficient to distinguish individual giant molecular clouds (GMCs). From these data we generated a catalog of 148 GMCs with an expectation that no more than 15 of the sources are spurious. The catalog is complete down to GMC masses of 1.5x105M☉and contains a total mass of 2.3x107M☉. Single-dish observations of CO in selected fields imply that our survey detects ∼50% of the CO flux, hence that the total molecular mass of M33 is 4.5x107M☉, approximately 2% of the H I mass. The GMCs in our catalog are confined largely to the central region (R<4 kpc). They show a remarkable spatial and kinematic correlation with overdense H I filaments; the geometry suggests that the formation of GMCs follows that of the filaments. The GMCs exhibit a mass spectrum dN/dM∝M–2.6±0.3, considerably steeper than that found in the Milky Way and in the LMC. Combined with the total mass, this steep function implies that the GMCs in M33 form with a characteristic mass of ∼7x104 M☉. More than 2/3 of the GMCs have associated H II regions, implying that the GMCs have a short quiescent period. Our results suggest the rapid assembly of molecular clouds from atomic gas, with prompt onset of massive star formation.

Abstract Copyright: ∼

Journal keyword(s): Galaxies: Individual: Messier Number: M33 - Galaxies: Individual: NGC Number: NGC 598 - Galaxies: ISM - ISM: Clouds - ISM: Molecules - Radio Lines: Galaxies

VizieR on-line data: <Available at CDS (J/ApJS/149/343): table1.dat>

Nomenclature: Table 1: [EPR2003] NNN (Nos 1-148).

Simbad objects: 171

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Number of rows : 171
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 [EPR2003] 139 MoC 01 32 40.7 +30 26 56           ~ 1 0
2 [EPR2003] 147 MoC 01 32 41.7 +30 25 43           ~ 1 0
3 [EPR2003] 113 MoC 01 32 42.3 +30 36 35           ~ 3 0
4 [EPR2003] 87 MoC 01 32 42.7 +30 22 26           ~ 4 0
5 [EPR2003] 92 MoC 01 32 49.7 +30 30 56           ~ 1 0
6 [EPR2003] 140 MoC 01 32 51.6 +30 45 50           ~ 1 0
7 [EPR2003] 135 MoC 01 32 57.1 +30 36 36           ~ 1 0
8 M33GMC 137 MoC 01 33 03.7 +30 39 55           ~ 5 0
9 [EPR2003] 47 MoC 01 33 05.7 +30 35 08           ~ 4 0
10 [EPR2003] 88 MoC 01 33 10.4 +30 41 17           ~ 1 0
11 [EPR2003] 63 MoC 01 33 10.5 +30 27 47           ~ 4 0
12 [EPR2003] 66 MoC 01 33 10.5 +30 40 09           ~ 1 0
13 [EPR2003] 40 MoC 01 33 12.7 +30 39 31           ~ 3 0
14 [EPR2003] 61 MoC 01 33 13.1 +30 27 20           ~ 4 0
15 [CBB2017] 324 MoC 01 33 14.4 +30 43 18           ~ 3 0
16 [EPR2003] 51 MoC 01 33 15.2 +30 41 13           ~ 3 0
17 [EPR2003] 114 MoC 01 33 18.4 +30 29 37           ~ 4 0
18 [EPR2003] 54 MoC 01 33 18.5 +30 41 32           ~ 3 0
19 [EPR2003] 123 MoC 01 33 18.6 +30 40 52           ~ 3 0
20 [EPR2003] 118 MoC 01 33 18.7 +30 33 24           ~ 3 0
21 [EPR2003] 133 MoC 01 33 19.3 +30 41 14           ~ 1 0
22 [EPR2003] 103 MoC 01 33 22.5 +30 48 10           ~ 1 0
23 M33GMC 90 MoC 01 33 23.1 +30 32 00           ~ 6 0
24 [EPR2003] 115 MoC 01 33 23.5 +30 40 48           ~ 1 0
25 [GBR2012] 12 MoC 01 33 23.6 +30 25 39           ~ 5 0
26 [EPR2003] 143 MoC 01 33 24.8 +30 30 53           ~ 3 0
27 M33GMC 65 MoC 01 33 29.1 +30 40 24           ~ 4 0
28 [EPR2003] 116 MoC 01 33 29.6 +30 40 50           ~ 2 0
29 [MKT2012] 13 MoC 01 33 29.8 +30 32 01           ~ 5 0
30 [EPR2003] 137 MoC 01 33 30.7 +30 30 54           ~ 1 0
31 M33GMC 44 MoC 01 33 31.7 +30 37 57           ~ 5 0
32 [EPR2003] 60 MoC 01 33 32.0 +30 47 38           ~ 3 0
33 [EPR2003] 148 MoC 01 33 32.5 +30 42 06           ~ 1 0
34 [EPR2003] 49 MoC 01 33 33.2 +30 31 56           ~ 5 0
35 M33GMC 73 MoC 01 33 33.4 +30 32 14           ~ 8 0
36 [EPR2003] 32 MoC 01 33 33.5 +30 41 21           ~ 4 0
37 M33GMC 38 MoC 01 33 34.8 +30 37 02           ~ 6 0
38 [EPR2003] 82 MoC 01 33 35.8 +30 23 14           ~ 1 0
39 [MKT2012] 9 MoC 01 33 35.8 +30 36 29           ~ 5 0
40 M33GMC 34 MoC 01 33 36.7 +30 39 31           ~ 9 0
41 M33GMC 71 MoC 01 33 37.0 +30 31 57           ~ 5 0
42 [EPR2003] 100 MoC 01 33 37.1 +30 33 34           ~ 1 0
43 M33GMC 52 MoC 01 33 37.4 +30 43 10           ~ 4 0
44 [WS90b] MC 31 MoC 01 33 37.8 +30 39 23           ~ 3 0
45 [EPR2003] 53 MoC 01 33 37.8 +30 44 40           ~ 3 0
46 [EPR2003] 104 MoC 01 33 38.6 +30 32 20           ~ 5 0
47 M33GMC 108 MoC 01 33 39.0 +30 28 12           ~ 5 0
48 M33GMC 27 MoC 01 33 39.1 +30 38 00           ~ 5 0
49 [EPR2003] 125 MoC 01 33 39.9 +30 51 22           ~ 2 0
50 M33GMC 80 MoC 01 33 40.6 +30 46 02           ~ 7 0
51 M33GMC 22 MoC 01 33 41.0 +30 39 14           ~ 19 0
52 [EPR2003] 79 MoC 01 33 41.4 +30 41 47           ~ 4 0
53 [EPR2003] 102 MoC 01 33 41.9 +30 35 23           ~ 2 0
54 [CBB2017] 158 MoC 01 33 42.0 +30 40 08           ~ 5 0
55 [EPR2003] 62 MoC 01 33 42.2 +30 47 48           ~ 3 0
56 [WS90b] MC 36 MoC 01 33 42.4 +30 39 41           ~ 2 0
57 [EPR2003] 22 MoC 01 33 42.7 +30 33 10           ~ 10 0
58 [WS90b] MC 34 MoC 01 33 43.1 +30 38 54           ~ 3 0
59 [EPR2003] 44 MoC 01 33 43.4 +30 41 10           ~ 3 0
60 [WS90b] MC 35 MoC 01 33 44.0 +30 39 11           ~ 4 0
61 [EPR2003] 126 MoC 01 33 44.2 +30 32 08           ~ 5 0
62 [EPR2003] 112 MoC 01 33 44.2 +30 41 38           ~ 4 0
63 M33GMC 28 MoC 01 33 45.1 +30 36 00           ~ 7 0
64 M33GMC 20 MoC 01 33 45.3 +30 36 52           ~ 6 0
65 [EPR2003] 122 MoC 01 33 45.3 +30 33 15           ~ 4 0
66 [EPR2003] 144 MoC 01 33 45.7 +30 49 41           ~ 1 0
67 [EPR2003] 117 MoC 01 33 46.3 +30 42 40           ~ 3 0
68 [EPR2003] 73 MoC 01 33 46.5 +30 48 23           ~ 4 0
69 [EPR2003] 52 MoC 01 33 46.8 +30 38 55           ~ 6 0
70 [MKT2012] 24 MoC 01 33 46.9 +30 32 41           ~ 6 0
71 [WS90b] MC 37 MoC 01 33 47.19 +30 35 59.3           ~ 4 0
72 [WS90b] MC 38 MoC 01 33 47.5 +30 37 08           ~ 2 0
73 [EPR2003] 106 MoC 01 33 47.9 +30 39 32           ~ 6 0
74 [EPR2003] 50 MoC 01 33 47.9 +30 41 25           ~ 4 0
75 [EPR2003] 107 MoC 01 33 49.1 +30 41 09           ~ 4 0
76 [EPR2003] 24 MoC 01 33 49.6 +30 40 06           ~ 6 0
77 M33GMC 13 MoC 01 33 50.1 +30 37 28           ~ 10 0
78 [EPR2003] 20 MoC 01 33 50.5 +30 33 58           ~ 7 0
79 M 33 GiG 01 33 50.8965749232 +30 39 36.630403128 6.17 6.27 5.72     ~ 6226 1
80 [EPR2003] 98 MoC 01 33 51.2 +30 35 53           ~ 4 0
81 [WS90b] MC 5 MoC 01 33 51.3 +30 39 24           ~ 3 0
82 M33GMC 9 MoC 01 33 51.3 +30 41 28           ~ 5 0
83 [EPR2003] 146 MoC 01 33 52.3 +30 33 06           ~ 1 0
84 [BLR2008] M33 14 MoC 01 33 52.4 +30 39 19           ~ 13 0
85 M33GMC 5 MoC 01 33 52.5 +30 40 32           ~ 5 0
86 [WS90b] MC 7 MoC 01 33 52.8 +30 37 00           ~ 4 0
87 [EPR2003] 75 MoC 01 33 53.0 +30 37 22           ~ 4 0
88 [CBB2017] 140 MoC 01 33 53.00 +30 37 38.5           ~ 8 0
89 [BLR2008] M33 24 MoC 01 33 53.1 +30 37 47           ~ 6 0
90 [BLR2008] M33 15 MoC 01 33 53.1 +30 39 01           ~ 10 0
91 [EPR2003] 142 MoC 01 33 53.3 +30 38 46           ~ 1 0
92 M33GMC 60 MoC 01 33 53.4 +30 33 21           ~ 6 0
93 M33GMC 17 MoC 01 33 54.9 +30 37 44           ~ 9 0
94 [EPR2003] 78 MoC 01 33 55.2 +30 34 03           ~ 2 0
95 [EPR2003] 31 MoC 01 33 55.2 +30 41 33           ~ 5 0
96 M33GMC 26 MoC 01 33 55.8 +30 43 02           ~ 7 0
97 M33GMC 11 MoC 01 33 56.60 +30 41 15.3           ~ 5 0
98 M33GMC 7 MoC 01 33 57.0 +30 40 07           ~ 7 0
99 [WS90b] MC 12 MoC 01 33 57.1 +30 37 02           ~ 3 0
100 [MKT2012] 60 MoC 01 33 57.6 +30 36 41           ~ 4 0
101 M33GMC 23 MoC 01 33 57.96 +30 42 22.1           ~ 6 0
102 [EPR2003] 127 MoC 01 33 58.3 +30 48 07           ~ 1 0
103 [WS90b] MC 14 MoC 01 33 58.4 +30 35 29           ~ 2 0
104 [WS90b] MC 15 MoC 01 33 58.5 +30 35 43           ~ 2 0
105 [WS90b] MC 22 MoC 01 33 58.5 +30 40 58           ~ 3 0
106 M33GMC 86 MoC 01 33 59.0 +30 48 57           ~ 7 0
107 [EPR2003] 13 MoC 01 33 59.1 +30 36 09           ~ 9 0
108 [WS90b] MC 28 MoC 01 33 59.3 +30 41 35           ~ 3 0
109 [WS90b] MC 21 MoC 01 33 59.6 +30 41 02           ~ 3 0
110 [BLR2008] M33 16 MoC 01 33 59.7 +30 41 32           ~ 7 0
111 M33GMC 56 MoC 01 34 00.0 +30 34 47           ~ 4 0
112 [WS90b] MC 20 MoC 01 34 00.1 +30 40 47           ~ 19 0
113 [EPR2003] 43 MoC 01 34 01.1 +30 46 06           ~ 4 0
114 [EPR2003] 42 MoC 01 34 01.4 +30 43 53           ~ 4 0
115 [EPR2003] 26 MoC 01 34 01.6 +30 36 43           ~ 4 0
116 [WS90b] MC 23 MoC 01 34 01.8 +30 40 21           ~ 3 0
117 [WS90b] MC 19 MoC 01 34 02.3 +30 39 09           ~ 10 0
118 [WS90b] MC 25 MoC 01 34 02.3 +30 41 17           ~ 2 0
119 M33GMC 31 MoC 01 34 02.6 +30 38 38           ~ 11 0
120 [EPR2003] 56 MoC 01 34 02.6 +30 46 31           ~ 5 0
121 M33GMC 83 MoC 01 34 03.5 +30 48 13           ~ 6 0
122 [EPR2003] 77 MoC 01 34 04.0 +30 35 58           ~ 4 0
123 [EPR2003] 65 MoC 01 34 04.4 +30 48 59           ~ 5 0
124 [WS90b] MC 26 MoC 01 34 05.10 +30 42 13.9           ~ 4 0
125 [EPR2003] 110 MoC 01 34 05.3 +30 36 15           ~ 1 0
126 [EPR2003] 121 MoC 01 34 06.2 +30 45 52           ~ 1 0
127 [EPR2003] 25 MoC 01 34 06.3 +30 37 40           ~ 4 0
128 [EPR2003] 10 MoC 01 34 06.6 +30 47 51           ~ 8 0
129 [EPR2003] 35 MoC 01 34 06.7 +30 39 27           ~ 5 0
130 [EPR2003] 141 MoC 01 34 07.3 +30 41 41           ~ 4 0
131 M33GMC 100 MoC 01 34 08.0 +30 32 49           ~ 4 0
132 [EPR2003] 59 MoC 01 34 08.3 +30 33 53           ~ 3 0
133 M33GMC 46 MoC 01 34 08.8 +30 39 11           ~ 9 0
134 M33GMC 91 MoC 01 34 09.3 +30 49 06           ~ 19 0
135 M33GMC 110 MoC 01 34 09.9 +30 31 52           ~ 4 0
136 M33GMC 76 MoC 01 34 10.7 +30 36 18           ~ 11 0
137 [EPR2003] 108 MoC 01 34 10.7 +30 49 48           ~ 3 0
138 [EPR2003] 90 MoC 01 34 10.7 +30 37 04           ~ 1 0
139 [EPR2003] 39 MoC 01 34 10.8 +30 37 13           ~ 5 0
140 M33GMC 51 MoC 01 34 11.6 +30 43 16           ~ 5 0
141 M33GMC 89 MoC 01 34 12.0 +30 48 28           ~ 8 0
142 [EPR2003] 34 MoC 01 34 12.4 +30 37 16           ~ 4 0
143 M33GMC 57 MoC 01 34 13.0 +30 42 02           ~ 8 0
144 [EPR2003] 72 MoC 01 34 13.5 +30 39 03           ~ 7 0
145 [CBB2017] 260 MoC 01 34 13.6 +30 34 49           ~ 3 0
146 BCLMP 710 Cl? 01 34 13.666 +30 33 43.35 15.67 15.75 15.90 15.94 16.22 ~ 23 0
147 [EPR2003] 28 MoC 01 34 14.1 +30 34 27           ~ 2 0
148 [EPR2003] 105 MoC 01 34 14.3 +30 30 30           ~ 3 0
149 [EPR2003] 111 MoC 01 34 16.6 +30 51 38           ~ 1 0
150 [EPR2003] 21 MoC 01 34 16.7 +30 39 18           ~ 7 0
151 [EPR2003] 94 MoC 01 34 17.1 +30 36 08           ~ 1 0
152 M33GMC 116 MoC 01 34 17.8 +30 33 42           ~ 4 0
153 [EPR2003] 67 MoC 01 34 18.1 +30 48 29           ~ 3 0
154 [EPR2003] 99 MoC 01 34 18.8 +30 33 48           ~ 2 0
155 [EPR2003] 84 MoC 01 34 19.2 +30 49 06           ~ 2 0
156 [EPR2003] 134 MoC 01 34 21.7 +30 34 55           ~ 3 0
157 [EPR2003] 145 MoC 01 34 22.1 +30 48 37           ~ 2 0
158 [EPR2003] 136 MoC 01 34 22.6 +30 48 48           ~ 1 0
159 M33GMC 131 MoC 01 34 22.7 +30 32 41           ~ 4 0
160 [EPR2003] 69 MoC 01 34 27.8 +30 49 16           ~ 5 0
161 M33GMC 122 MoC 01 34 31.7 +30 47 37           ~ 8 0
162 [EPR2003] 128 MoC 01 34 33.0 +30 52 33           ~ 1 0
163 [MKT2012] 1 MoC 01 34 33.0 +30 46 47           ~ 25 0
164 [EPR2003] 71 MoC 01 34 33.4 +30 35 17           ~ 3 0
165 [EPR2003] 9 MoC 01 34 34.6 +30 46 17           ~ 21 0
166 [EPR2003] 130 MoC 01 34 36.3 +30 37 48           ~ 1 0
167 [EPR2003] 11 MoC 01 34 38.0 +30 40 29           ~ 6 0
168 [EPR2003] 131 MoC 01 34 39.1 +30 43 56           ~ 3 0
169 [EPR2003] 138 MoC 01 34 40.3 +30 47 54           ~ 1 0
170 M33GMC 138 MoC 01 34 41.5 +30 47 08           ~ 6 0
171 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 19090 0

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