1995PASP..107..361C

Query : 1995PASP..107..361C

1995PASP..107..361C - Publ. Astron. Soc. Pac., 107, 361-368 (1995/April-0)

The HII regions of NGC 6822. IV. A multivariate and bivariate analysis.

COLLIER J., HODGE P. and KENNICUTT R.C.

Abstract (from CDS):

Using calibrated H-alpha CCD images, we have examined the structure of most of the known H II regions in the irregular galaxy NGC 6822. To search for observaitonal clues to the reasons for the different morphologies, we have examined correlations between several quantitative parameters (peak surface brightness, full-width half-maximum, position, local H I intensity, total emission-line luminosity) and one qualitative one (morphological type). Although many weak correlations exist among these data sets, the only strong bivariate correlation found was between luminosity and size. Multivariate analysis (using principal components analysis) shows that there are no other strong correlations, indicating that the variety displayed in the morphologies of these H II regions is the result of significant differences in the physical parameters that govern them (mass, exciting star or stars, gas density and distribution, dust density and distribution, dynamics, evolutionary state). No simple scaling of parameters can explain the observations.

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Journal keyword(s):

Simbad objects: 143

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Number of rows : 143
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 [HKL88] 1 HII 19 44 30.7 -14 47 34           ~ 4 0
2 [HP2009] HII 16 HII 19 44 30.88 -14 48 26.3   17.88 17.48     ~ 12 0
3 [H77] HII 2 HII 19 44 31.79 -14 41 57.0   15       ~ 34 0
4 [HKL88] 2 HII 19 44 32.0 -14 44 31           ~ 4 0
5 KD D2 ISM 19 44 32.1 -14 44 42           ~ 16 0
6 [GHG91] FIR 3 PoG 19 44 32.3 -14 44 13           ~ 9 0
7 [HKL88] 3 HII 19 44 32.6 -14 43 16           ~ 3 0
8 [HP2009] HII 14 HII 19 44 32.99 -14 47 31.6   18.38 17.95     ~ 11 0
9 [HKL88] 4 HII 19 44 33.6 -14 43 43           ~ 4 0
10 MCG-02-50-003 HII 19 44 34.38 -14 42 20.3           ~ 36 0
11 [HKL88] 5 HII 19 44 37.9 -14 42 31           ~ 4 0
12 KD D7 HII 19 44 38.0 -14 51 09           ~ 12 0
13 KD D9 HII 19 44 38.0 -14 50 56           ~ 8 0
14 KD D8 HII 19 44 38.6 -14 51 51           ~ 7 0
15 [HKL88] 6 HII 19 44 39.0 -14 51 32           ~ 5 0
16 [HKL88] 7 HII 19 44 39.5 -14 51 56           ~ 4 0
17 [HKL88] 8 HII 19 44 40.4 -14 51 59           ~ 4 0
18 [HKL88] 9 HII 19 44 40.5 -14 51 23           ~ 2 0
19 [HKL88] 10 HII 19 44 43.0 -14 50 29           ~ 2 0
20 [HKL88] 11 HII 19 44 44.2 -14 45 50           ~ 4 0
21 [HKL88] 12 HII 19 44 44.3 -14 46 27           ~ 4 0
22 [HKL88] 13 HII 19 44 46.3 -14 43 54           ~ 4 0
23 [HKL88] 14 HII 19 44 46.4 -14 45 21           ~ 3 0
24 [HKL88] 16 HII 19 44 46.7 -14 44 02           ~ 7 0
25 [HKL88] 15 HII 19 44 46.7 -14 43 43           ~ 4 0
26 [HKL88] 17 HII 19 44 46.9 -14 44 21           ~ 4 0
27 [HKL88] 18 HII 19 44 47.1 -14 44 56           ~ 3 0
28 [HKL88] 20 HII 19 44 47.4 -14 44 20           ~ 4 0
29 [HKL88] 19 HII 19 44 47.4 -14 43 21           ~ 4 0
30 [HKL88] 22 HII 19 44 47.7 -14 45 33           ~ 4 0
31 [HKL88] 21 HII 19 44 47.7 -14 44 41           ~ 4 0
32 [HKL88] 23 HII 19 44 47.9 -14 46 50           ~ 4 0
33 [HKL88] 109 HII 19 44 48.0 -14 43 12           ~ 2 0
34 [HKL88] 25 HII 19 44 48.1 -14 53 42           ~ 3 0
35 [HKL88] 110 HII 19 44 48.2 -14 43 23           ~ 2 0
36 [HKL88] 26 HII 19 44 48.4 -14 52 44           ~ 3 0
37 KD D11 HII 19 44 48.4 -14 46 15           ~ 9 0
38 KD D10 HII 19 44 48.4 -14 44 18           ~ 13 0
39 [HKL88] 27 HII 19 44 48.5 -14 45 15           ~ 4 0
40 [HKL88] 28 HII 19 44 48.6 -14 45 40           ~ 4 0
41 [RHH2007] NGC 6822 C HII 19 44 48.67 -14 52 26.5   17.44 16.99     ~ 10 0
42 [HKL88] 30 HII 19 44 48.7 -14 52 53           ~ 3 0
43 [HKL88] 31 HII 19 44 48.8 -14 45 47           ~ 4 0
44 [HKL88] 34 HII 19 44 49.0 -14 45 33           ~ 5 0
45 [HKL88] 33 HII 19 44 49.0 -14 43 55           ~ 4 0
46 [HKL88] 32 HII 19 44 49.0 -14 43 44           ~ 4 0
47 [HKL88] 36 HII 19 44 49.1 -14 44 29           ~ 5 0
48 [HKL88] 35 HII 19 44 49.1 -14 43 35           ~ 4 0
49 KD D12 Cl* 19 44 49.27 -14 43 21.2           ~ 10 0
50 [HKL88] 38 HII 19 44 49.3 -14 46 22           ~ 3 0
51 [HKL88] 37 HII 19 44 49.3 -14 45 45           ~ 4 0
52 [HKL88] 39 HII 19 44 49.7 -14 52 34           ~ 3 0
53 [HKL88] 41 HII 19 44 49.7 -14 45 29           ~ 4 0
54 [HKL88] 40 HII 19 44 49.7 -14 44 24           ~ 5 0
55 KD D13 HII 19 44 50.1 -14 52 58           ~ 6 0
56 [HKL88] 42 HII 19 44 50.1 -14 43 44           ~ 6 0
57 [HKL88] 43 HII 19 44 50.2 -14 45 02           ~ 3 0
58 [HKL88] 44 HII 19 44 50.3 -14 44 11           ~ 4 0
59 [HKL88] 45 HII 19 44 50.4 -14 53 02           ~ 3 0
60 [HKL88] 29 HII 19 44 50.8 -14 53 27           ~ 3 0
61 [HKL88] 46 HII 19 44 50.8 -14 53 10           ~ 3 0
62 KD D14 HII 19 44 50.8 -14 52 49           ~ 5 0
63 KD D15 HII 19 44 50.9 -14 52 56           ~ 5 0
64 [HKL88] 47 HII 19 44 51.1 -14 53 00           ~ 3 0
65 [HKL88] 48 HII 19 44 51.2 -14 52 54           ~ 4 0
66 [H69] NGC 6822 9 HII 19 44 51.3 -14 52 49           ~ 10 0
67 KD D17 HII 19 44 51.5 -14 52 47           ~ 5 0
68 [HKL88] 49 HII 19 44 51.5 -14 44 57           ~ 3 0
69 [HKL88] 50 HII 19 44 51.6 -14 42 48           ~ 3 0
70 [HKL88] 51 HII 19 44 51.7 -14 44 29           ~ 3 0
71 [HKL88] 52 HII 19 44 51.8 -14 52 41           ~ 3 0
72 [HKL88] 53 HII 19 44 51.8 -14 43 49           ~ 4 0
73 [HKL88] 54 HII 19 44 52.0 -14 52 55           ~ 3 0
74 KD D18 HII 19 44 52.5 -14 51 58           ~ 9 0
75 [HKL88] 55 HII 19 44 52.5 -14 44 06           ~ 4 0
76 [H25] V HII 19 44 52.84 -14 43 09.8           ~ 69 0
77 [HKL88] 56 HII 19 44 53.1 -14 52 33           ~ 3 0
78 KD D20 HII 19 44 53.1 -14 48 36           ~ 10 0
79 [HKL88] 57 HII 19 44 53.8 -14 52 28           ~ 3 0
80 KD D21 HII 19 44 53.8 -14 43 05           ~ 9 0
81 [HKL88] 58 HII 19 44 53.9 -14 49 00           ~ 3 0
82 [HKL88] 60 HII 19 44 54.0 -14 42 42           ~ 3 0
83 [HKL88] 59 HII 19 44 54.1 -14 51 45           ~ 3 0
84 [HKL88] 61 HII 19 44 54.2 -14 52 40           ~ 3 0
85 [HKL88] 62 HII 19 44 54.2 -14 43 37           ~ 3 0
86 [HKL88] 63 HII 19 44 54.3 -14 48 19           ~ 3 0
87 [HKL88] 64 HII 19 44 55.0 -14 43 46           ~ 3 0
88 NGC 6822 G 19 44 56.199 -14 47 51.29   18 8.1     ~ 1661 0
89 KD D22 HII 19 44 56.2 -14 50 30           ~ 5 0
90 [HKL88] 65 HII 19 44 56.2 -14 48 24           ~ 3 0
91 [HKL88] 66 HII 19 44 56.6 -14 47 27           ~ 4 0
92 [GHG91] FIR 2 SNR 19 44 56.9 -14 48 27           ~ 18 0
93 [HKL88] 67 HII 19 44 57.2 -14 47 36           ~ 4 0
94 KD D24 HII 19 44 57.7 -14 47 23           ~ 9 0
95 [HKL88] 69 HII 19 44 58.0 -14 47 46           ~ 4 0
96 [HKL88] 71 HII 19 44 59.5 -14 48 31           ~ 4 0
97 [HKL88] 70 HII 19 44 59.5 -14 47 22           ~ 5 0
98 [HKL88] 72 HII 19 44 59.7 -14 47 08           ~ 3 0
99 [HKL88] 73 HII 19 45 00.6 -14 43 38           ~ 5 0
100 [HKL88] 74 HII 19 45 00.9 -14 44 03           ~ 3 0
101 [HKL88] 75 HII 19 45 01.1 -14 44 24           ~ 4 0
102 KD D25 HII 19 45 02.4 -14 46 52           ~ 5 0
103 [HKL88] 76 HII 19 45 02.5 -14 43 20           ~ 3 0
104 [HKL88] 77 HII 19 45 03.2 -14 43 32           ~ 4 0
105 [HKL88] 80 HII 19 45 03.8 -14 44 04           ~ 5 0
106 [HKL88] 79 HII 19 45 03.8 -14 43 55           ~ 5 0
107 [HKL88] 78 HII 19 45 03.8 -14 43 46           ~ 5 0
108 [HKL88] 81 HII 19 45 04.3 -14 56 17           ~ 3 0
109 [HKL88] 68 HII 19 45 04.4 -14 44 17           ~ 3 0
110 [HKL88] 82 HII 19 45 04.7 -14 44 08           ~ 3 0
111 [HKL88] 84 HII 19 45 04.9 -14 42 54           ~ 3 0
112 [HKL88] 83 HII 19 45 05.1 -14 56 17           ~ 3 0
113 KD D26 HII 19 45 05.2 -14 43 13           ~ 55 0
114 KD D27 HII 19 45 05.8 -14 57 31           ~ 7 0
115 [HKL88] 85 HII 19 45 06.3 -14 42 57           ~ 3 0
116 KD D28 HII 19 45 06.4 -14 57 11           ~ 8 0
117 [HKL88] 86 HII 19 45 06.6 -14 48 34           ~ 3 0
118 [HKL88] 87 HII 19 45 07.3 -14 44 14           ~ 3 0
119 KD D29 HII 19 45 07.9 -14 48 34           ~ 8 0
120 [HKL88] 88 HII 19 45 08.1 -14 49 15           ~ 3 0
121 [HKL88] 89 HII 19 45 08.3 -14 57 41           ~ 2 0
122 [BRC2005] V315 HII 19 45 08.30 -14 44 11.4   23.080 22.404     ~ 4 0
123 [HKL88] 92 HII 19 45 08.9 -14 44 23           ~ 3 0
124 [HKL88] 91 HII 19 45 09.0 -14 56 46           ~ 3 0
125 [HKL88] 93 HII 19 45 09.2 -14 44 02           ~ 3 0
126 [HKL88] 94 HII 19 45 09.5 -14 57 11           ~ 2 0
127 [HKL88] 96 HII 19 45 10.4 -14 44 50           ~ 3 0
128 [HKL88] 97 HII 19 45 10.5 -14 44 32           ~ 4 0
129 [BRC2005] V230 HII 19 45 10.68 -14 45 26.4   23.782 21.721     ~ 5 0
130 KD D30 HII 19 45 10.8 -14 48 48           ~ 11 0
131 [HKL88] 99 HII 19 45 10.9 -14 48 12           ~ 3 0
132 [HKL88] 100 HII 19 45 11.4 -14 45 07           ~ 3 0
133 [HKL88] 101 HII 19 45 12.3 -14 44 34           ~ 3 0
134 [HKL88] 103 HII 19 45 13.6 -14 46 40           ~ 3 0
135 [HKL88] 102 HII 19 45 13.6 -14 45 07           ~ 3 0
136 [HKL88] 104 HII 19 45 14.2 -14 46 36           ~ 3 0
137 [HKL88] 105 HII 19 45 15.4 -14 44 39           ~ 4 0
138 [H77] HII 16 HII 19 45 15.9 -14 45 29           ~ 7 0
139 [HKL88] 106 HII 19 45 16.8 -14 45 09           ~ 4 0
140 [HKL88] 107 HII 19 45 18.2 -14 45 21           ~ 4 0
141 [HKL88] 108 HII 19 45 18.9 -14 44 53           ~ 4 0
142 [HKL88] 95 HII ~ ~           ~ 3 0
143 [HKL88] 24 HII ~ ~           ~ 3 0

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