2007ApJ...661..830R

Query : 2007ApJ...661..830R

2007ApJ...661..830R - Astrophys. J., 661, 830-844 (2007/June-1)

High-resolution molecular gas maps of M33.

ROSOLOWSKY E., KETO E., MATSUSHITA S. and WILLNER S.P.

Abstract (from CDS):

New observations of CO (J=1⟶0) line emission from M33, using the 25 element BEARS focal plane array at the Nobeyama Radio Observatory 45 m telescope, in conjunction with existing maps from the BIMA interferometer and the FCRAO 14 m telescope, give the highest resolution (13") and most sensitive (σrms∼60 mK) maps to date of the distribution of molecular gas in the central 5.5 kpc of the galaxy. A new catalog of giant molecular clouds (GMCs) has a completeness limit of 1.3x105 M☉. The fraction of molecular gas found in GMCs is a strong function of radius in the galaxy, declining from 60% in the center to 20% at galactocentric radius Rgal~4 kpc. Beyond that radius, GMCs are nearly absent, although molecular gas exists. Most (90%) of the emission from low-mass clouds is found within 100 pc projected separation of a GMC. In an annulus 2.1 kpc<Rgal<4.1 kpc, GMC masses follow a power-law distribution with index -2.1. Inside that radius, the mass distribution is truncated, and clouds more massive than 8x105 M☉ are absent. The cloud mass distribution shows no significant difference in the grand-design spiral arms versus the interarm region. The CO surface brightness ratio for the arm to interarm regions is 1.5, typical of other flocculent galaxies.

Abstract Copyright: ∼

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

VizieR on-line data: <Available at CDS (J/ApJ/661/830): table3.dat>

Nomenclature: Table 3: M33GMC NNN (Nos 1-149).

Simbad objects: 157

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Number of rows : 157
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 M 31 AGN 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 13622 1
2 IRC +30021 OH* 01 11 15.9306739944 +30 38 06.270834804       13.73   M10 85 1
3 M33GMC 149 MoC 01 32 11.50 +30 30 18.0           ~ 1 0
4 [EPR2003] 113 MoC 01 32 42.3 +30 36 35           ~ 3 0
5 [EPR2003] 87 MoC 01 32 42.7 +30 22 26           ~ 4 0
6 M33GMC 144 MoC 01 32 44.20 +30 35 12.0           ~ 2 0
7 M33GMC 137 MoC 01 33 03.7 +30 39 55           ~ 5 0
8 [EPR2003] 47 MoC 01 33 05.7 +30 35 08           ~ 4 0
9 [EPR2003] 63 MoC 01 33 10.5 +30 27 47           ~ 4 0
10 M33GMC 148 MoC 01 33 10.50 +30 56 42.0           ~ 1 0
11 M33GMC 117 MoC 01 33 12.00 +30 39 32.0           ~ 1 0
12 [EPR2003] 61 MoC 01 33 13.1 +30 27 20           ~ 4 0
13 M33GMC 111 MoC 01 33 13.6063063392 +30 39 29.077061148           ~ 3 0
14 [EPR2003] 51 MoC 01 33 15.2 +30 41 13           ~ 3 0
15 M33GMC 145 MoC 01 33 16.90 +30 52 53.0           ~ 2 0
16 [EPR2003] 114 MoC 01 33 18.4 +30 29 37           ~ 4 0
17 [EPR2003] 54 MoC 01 33 18.5 +30 41 32           ~ 3 0
18 [EPR2003] 123 MoC 01 33 18.6 +30 40 52           ~ 3 0
19 [GBR2012] 38 MoC 01 33 21.49 +30 32 02.6           ~ 2 0
20 M33GMC 90 MoC 01 33 23.1 +30 32 00           ~ 6 0
21 [GBR2012] 12 MoC 01 33 23.6 +30 25 39           ~ 5 0
22 M33GMC 79 MoC 01 33 23.90 +30 39 09.0           ~ 2 0
23 M33GMC 65 MoC 01 33 29.1 +30 40 24           ~ 4 0
24 [MKT2012] 13 MoC 01 33 29.8 +30 32 01           ~ 5 0
25 [GBR2012] 52 MoC 01 33 30.47 +30 32 18.7           ~ 3 0
26 M33GMC 44 MoC 01 33 31.7 +30 37 57           ~ 5 0
27 [EPR2003] 60 MoC 01 33 32.0 +30 47 38           ~ 3 0
28 [GBR2012] 44 MoC 01 33 32.33 +30 32 26.7           ~ 3 0
29 M33GMC 43 MoC 01 33 32.70 +30 37 03.7           ~ 4 0
30 [EPR2003] 49 MoC 01 33 33.2 +30 31 56           ~ 5 0
31 M33GMC 73 MoC 01 33 33.4 +30 32 14           ~ 8 0
32 [EPR2003] 32 MoC 01 33 33.5 +30 41 21           ~ 4 0
33 M33GMC 38 MoC 01 33 34.8 +30 37 02           ~ 6 0
34 [MKT2012] 9 MoC 01 33 35.8 +30 36 29           ~ 5 0
35 M33GMC 34 MoC 01 33 36.7 +30 39 31           ~ 9 0
36 M33GMC 71 MoC 01 33 37.0 +30 31 57           ~ 5 0
37 M33GMC 52 MoC 01 33 37.4 +30 43 10           ~ 4 0
38 [EPR2003] 53 MoC 01 33 37.8 +30 44 40           ~ 3 0
39 [EPR2003] 104 MoC 01 33 38.6 +30 32 20           ~ 5 0
40 M33GMC 98 MoC 01 33 38.90 +30 47 23.0           ~ 1 0
41 M33GMC 108 MoC 01 33 39.0 +30 28 12           ~ 5 0
42 M33GMC 27 MoC 01 33 39.1 +30 38 00           ~ 5 0
43 [EPR2003] 125 MoC 01 33 39.9 +30 51 22           ~ 2 0
44 M33GMC 80 MoC 01 33 40.6 +30 46 02           ~ 7 0
45 M33GMC 22 MoC 01 33 41.0 +30 39 14           ~ 19 0
46 [GBR2012] 75 MoC 01 33 41.30 +30 35 12.8           ~ 2 0
47 [EPR2003] 79 MoC 01 33 41.4 +30 41 47           ~ 4 0
48 [EPR2003] 62 MoC 01 33 42.2 +30 47 48           ~ 3 0
49 [GBR2012] 76 MoC 01 33 42.23 +30 35 29.8           ~ 2 0
50 [EPR2003] 22 MoC 01 33 42.7 +30 33 10           ~ 10 0
51 M33GMC 16 MoC 01 33 43.10 +30 37 31.0           ~ 2 0
52 [EPR2003] 44 MoC 01 33 43.4 +30 41 10           ~ 3 0
53 M33GMC 128 MoC 01 33 44.00 +30 51 47.0           ~ 1 0
54 [EPR2003] 126 MoC 01 33 44.2 +30 32 08           ~ 5 0
55 [EPR2003] 112 MoC 01 33 44.2 +30 41 38           ~ 4 0
56 M33GMC 28 MoC 01 33 45.1 +30 36 00           ~ 7 0
57 M33GMC 20 MoC 01 33 45.3 +30 36 52           ~ 6 0
58 [EPR2003] 73 MoC 01 33 46.5 +30 48 23           ~ 4 0
59 [GBR2012] 270 MoC 01 33 46.72 +30 45 30.8           ~ 3 0
60 [EPR2003] 52 MoC 01 33 46.8 +30 38 55           ~ 6 0
61 [MKT2012] 24 MoC 01 33 46.9 +30 32 41           ~ 6 0
62 [EPR2003] 106 MoC 01 33 47.9 +30 39 32           ~ 6 0
63 [EPR2003] 50 MoC 01 33 47.9 +30 41 25           ~ 4 0
64 M33GMC 4 MoC 01 33 48.30 +30 38 53.0           ~ 1 0
65 [GBR2012] 191 MoC 01 33 48.42 +30 44 47.8           ~ 3 0
66 [EPR2003] 107 MoC 01 33 49.1 +30 41 09           ~ 4 0
67 [EPR2003] 24 MoC 01 33 49.6 +30 40 06           ~ 6 0
68 M33GMC 13 MoC 01 33 50.1 +30 37 28           ~ 10 0
69 [EPR2003] 20 MoC 01 33 50.5 +30 33 58           ~ 7 0
70 M 33 GiG 01 33 50.8965749232 +30 39 36.630403128 6.17 6.27 5.72     ~ 6226 1
71 M33GMC 9 MoC 01 33 51.3 +30 41 28           ~ 5 0
72 [BLR2008] M33 14 MoC 01 33 52.4 +30 39 19           ~ 13 0
73 M33GMC 5 MoC 01 33 52.5 +30 40 32           ~ 5 0
74 [GBR2012] 121 MoC 01 33 52.50 +30 42 15.0           ~ 3 0
75 M33GMC 63 MoC 01 33 52.80 +30 46 23.4           ~ 4 0
76 M33GMC 19 MoC 01 33 52.90 +30 37 17.0           ~ 1 0
77 M33GMC 60 MoC 01 33 53.4 +30 33 21           ~ 6 0
78 [GBR2012] 126 MoC 01 33 53.85 +30 41 44.8           ~ 3 0
79 M33GMC 112 MoC 01 33 54.00 +30 51 04.0           ~ 1 0
80 M33GMC 17 MoC 01 33 54.9 +30 37 44           ~ 9 0
81 [WS90b] MC 29 MoC 01 33 55.50 +30 41 37.0           ~ 5 0
82 M33GMC 26 MoC 01 33 55.8 +30 43 02           ~ 7 0
83 M33GMC 11 MoC 01 33 56.60 +30 41 15.3           ~ 5 0
84 M33GMC 7 MoC 01 33 57.0 +30 40 07           ~ 7 0
85 [MKT2012] 60 MoC 01 33 57.6 +30 36 41           ~ 4 0
86 M33GMC 23 MoC 01 33 57.96 +30 42 22.1           ~ 6 0
87 M33GMC 86 MoC 01 33 59.0 +30 48 57           ~ 7 0
88 [EPR2003] 13 MoC 01 33 59.1 +30 36 09           ~ 9 0
89 [BLR2008] M33 16 MoC 01 33 59.7 +30 41 32           ~ 7 0
90 M33GMC 56 MoC 01 34 00.0 +30 34 47           ~ 4 0
91 [WS90b] MC 20 MoC 01 34 00.1 +30 40 47           ~ 19 0
92 [EPR2003] 43 MoC 01 34 01.1 +30 46 06           ~ 4 0
93 [EPR2003] 42 MoC 01 34 01.4 +30 43 53           ~ 4 0
94 [EPR2003] 26 MoC 01 34 01.6 +30 36 43           ~ 4 0
95 [WS90b] MC 19 MoC 01 34 02.3 +30 39 09           ~ 10 0
96 M33GMC 31 MoC 01 34 02.6 +30 38 38           ~ 11 0
97 [EPR2003] 56 MoC 01 34 02.6 +30 46 31           ~ 5 0
98 M33GMC 83 MoC 01 34 03.5 +30 48 13           ~ 6 0
99 [EPR2003] 77 MoC 01 34 04.0 +30 35 58           ~ 4 0
100 [GBR2012] 285 MoC 01 34 04.10 +30 55 09.0           ~ 3 0
101 M33GMC 64 MoC 01 34 04.30 +30 46 33.0           ~ 1 0
102 [EPR2003] 65 MoC 01 34 04.4 +30 48 59           ~ 5 0
103 [EPR2003] 25 MoC 01 34 06.3 +30 37 40           ~ 4 0
104 [EPR2003] 10 MoC 01 34 06.6 +30 47 51           ~ 8 0
105 [EPR2003] 35 MoC 01 34 06.7 +30 39 27           ~ 5 0
106 M33GMC 143 MoC 01 34 07.20 +30 57 52.0           ~ 1 0
107 [EPR2003] 141 MoC 01 34 07.3 +30 41 41           ~ 4 0
108 M33GMC 100 MoC 01 34 08.0 +30 32 49           ~ 4 0
109 [EPR2003] 59 MoC 01 34 08.3 +30 33 53           ~ 3 0
110 M33GMC 55 MoC 01 34 08.65 +30 37 40.7           ~ 3 0
111 M33GMC 46 MoC 01 34 08.8 +30 39 11           ~ 9 0
112 M33GMC 91 MoC 01 34 09.3 +30 49 06           ~ 19 0
113 [GBR2012] 262 MoC 01 34 09.62 +30 49 49.7           ~ 4 0
114 M33GMC 110 MoC 01 34 09.9 +30 31 52           ~ 4 0
115 M33GMC 76 MoC 01 34 10.7 +30 36 18           ~ 11 0
116 [EPR2003] 39 MoC 01 34 10.8 +30 37 13           ~ 5 0
117 [GBR2012] 200 MoC 01 34 10.84 +30 44 51.7           ~ 3 0
118 M33GMC 51 MoC 01 34 11.6 +30 43 16           ~ 5 0
119 M33GMC 89 MoC 01 34 12.0 +30 48 28           ~ 8 0
120 [EPR2003] 34 MoC 01 34 12.4 +30 37 16           ~ 4 0
121 M33GMC 57 MoC 01 34 13.0 +30 42 02           ~ 8 0
122 [EPR2003] 72 MoC 01 34 13.5 +30 39 03           ~ 7 0
123 BCLMP 710 Cl? 01 34 13.666 +30 33 43.35 15.67 15.75 15.90 15.94 16.22 ~ 23 0
124 M33GMC 99 MoC 01 34 13.80 +30 34 38.0           ~ 2 0
125 [EPR2003] 105 MoC 01 34 14.3 +30 30 30           ~ 3 0
126 M33GMC 97 MoC 01 34 14.60 +30 35 11.0           ~ 1 0
127 M33GMC 93 MoC 01 34 14.70 +30 48 31.5           ~ 4 0
128 M33GMC 84 MoC 01 34 15.30 +30 46 27.0           ~ 1 0
129 M33GMC 85 MoC 01 34 15.80 +30 46 34.0           ~ 2 0
130 [GBS2007] J013416+305222 MoC 01 34 16.0 +30 52 22           ~ 4 0
131 [EPR2003] 21 MoC 01 34 16.7 +30 39 18           ~ 7 0
132 M33GMC 121 MoC 01 34 16.85 +30 51 48.6           ~ 3 0
133 M33GMC 101 MoC 01 34 17.70 +30 48 36.0           ~ 1 0
134 M33GMC 116 MoC 01 34 17.8 +30 33 42           ~ 4 0
135 M33GMC 102 MoC 01 34 18.50 +30 48 23.0           ~ 1 0
136 [EPR2003] 99 MoC 01 34 18.8 +30 33 48           ~ 2 0
137 [EPR2003] 84 MoC 01 34 19.2 +30 49 06           ~ 2 0
138 [EPR2003] 134 MoC 01 34 21.7 +30 34 55           ~ 3 0
139 M33GMC 94 MoC 01 34 22.00 +30 39 46.0           ~ 2 0
140 M33GMC 131 MoC 01 34 22.7 +30 32 41           ~ 4 0
141 M33GMC 109 MoC 01 34 23.35 +30 48 44.5           ~ 3 0
142 [EPR2003] 69 MoC 01 34 27.8 +30 49 16           ~ 5 0
143 M33GMC 142 MoC 01 34 29.70 +30 55 30.0           ~ 1 0
144 M33GMC 122 MoC 01 34 31.7 +30 47 37           ~ 8 0
145 M33GMC 123 MoC 01 34 31.90 +30 47 42.0           ~ 2 0
146 [MKT2012] 1 MoC 01 34 33.0 +30 46 47           ~ 25 0
147 [EPR2003] 71 MoC 01 34 33.4 +30 35 17           ~ 3 0
148 [EPR2003] 9 MoC 01 34 34.6 +30 46 17           ~ 21 0
149 M33GMC 141 MoC 01 34 36.00 +30 36 22.0           ~ 2 0
150 [EPR2003] 11 MoC 01 34 38.0 +30 40 29           ~ 6 0
151 [EPR2003] 131 MoC 01 34 39.1 +30 43 56           ~ 3 0
152 M33GMC 138 MoC 01 34 41.5 +30 47 08           ~ 6 0
153 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 19090 0
154 M 63 LIN 13 15 49.2741893928 +42 01 45.728076108   9.34 8.59 8.35   ~ 1292 2
155 M 51 Sy2 13 29 52.698 +47 11 42.93   9.26 8.36 8.40   ~ 4565 4
156 NGC 6946 H2G 20 34 52.332 +60 09 13.24   10.5       ~ 2661 2
157 NGC 7538 OpC 23 13 37 +61 30.0           ~ 920 1

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