1998AJ....116.2246K

Query : 1998AJ....116.2246K

1998AJ....116.2246K - Astron. J., 116, 2246-2262 (1998/November-0)

Automatic determination of unbiased luminosity functions for H II regions. II. Four nearby dwarf galaxies.

KINGSBURGH R.L. and McCALL M.L.

Abstract (from CDS):

Luminosity functions in Hα have been measured for H II regions in the four dwarf galaxies UGCA 86, UGCA 92, UGCA 105, and UGC 4115 using both the traditional flux measurement method of fixed-threshold photometry (FTP) and the new method, percentage-of-peak photometry (PPP). The UGCA galaxies are members of the IC 342-Maffei 1 group. These two methods give significantly different results in galaxies in which significant numbers of peaks are associated with H II region complexes. The work demonstrates that fluxes from FTP can lead to biased luminosity functions and that PPP should, in general, be preferred. It is also shown that PPP luminosity functions are not very sensitive to atmospheric transparency, whereas those constructed from FTP can be, based on data taken under different atmospheric conditions.
Result. to date for six galaxies show that spirals and dwarfs have luminosity functions of similar shape, which implies that the distribution of the masses of star formation sites is largely independent of the mass, and by implication, the metallicity, of the host galaxy. As measured by PPP, the mean surface brightness of the lower luminosity H II regions grows as the one-third power of the flux grows, exactly as predicted for an ensemble in which the gas density does not vary systematically with the mass of the star cluster. For the brightest H II regions, however, the relation steepens, which implies that the most massive star clusters are formed out of the densest clouds.

Abstract Copyright: ∼

Journal keyword(s): {em words:} galaxies: individual (UGCA 86) - {em words:} galaxies: individual (UGCA 92) - {em words:} galaxies: individual (UGCA 105) - {em words:} galaxies: individual (UGC 4115) - Galaxies: ISM

VizieR on-line data: <Available at CDS (J/AJ/116/2246): tab3-6.dat>

Nomenclature: Table 3: [KM98] UGCA 86 NN (Nos 1-65). Table 4: [KM98] UGCA 92 NN (Nos 1-16). Table 5: [KM98] UGCA 105 NN (Nos 1-85). Table 6: [KM98] UGC 4115 NN (Nos 1-17).

Simbad objects: 206

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Number of rows : 206
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 IC 10 rG 00 20 17.33520 +59 18 13.6480   13.6 9.5     ~ 1185 1
2 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 12317 1
3 UGCA 34 GiG 02 36 35.4662282832 +59 39 17.507008584   17       ~ 198 2
4 IC 342 AGN 03 46 48.514 +68 05 45.98   10.5       ~ 1579 1
5 NAME IC 342 Group GrG 03 48 42 +68 00.8           ~ 102 1
6 [HM95] UGC-A 86 1 HII 03 59 09.3 +67 05 54           ~ 2 0
7 [HM95] UGC-A 86 3 HII 03 59 14.9 +67 07 49           ~ 2 0
8 [HM95] UGC-A 86 8 HII 03 59 23.9 +67 06 12           ~ 2 0
9 [HM95] UGC-A 86 22 HII 03 59 27.4 +67 06 11           ~ 2 0
10 [HM95] UGC-A 86 23 HII 03 59 28.0 +67 06 01           ~ 2 0
11 [KM98] UGCA 86 5 HII 03 59 28.095 +67 05 40.70           ~ 1 0
12 [HM95] UGC-A 86 25 HII 03 59 29.1 +67 05 42           ~ 2 0
13 [KM98] UGCA 86 8 HII 03 59 30.400 +67 10 46.90           ~ 1 0
14 [HM95] UGC-A 86 28 HII 03 59 31.3 +67 06 13           ~ 2 0
15 [KM98] UGCA 86 10 HII 03 59 32.125 +67 08 47.30           ~ 1 0
16 [HM95] UGC-A 86 32 HII 03 59 32.7 +67 07 16           ~ 2 0
17 [HM95] UGC-A 86 31 HII 03 59 32.8 +67 08 25           ~ 2 0
18 [HM95] UGC-A 86 33 HII 03 59 33.1 +67 06 18           ~ 2 0
19 [HM95] UGC-A 86 36 HII 03 59 34.8 +67 08 35           ~ 2 0
20 [HM95] UGC-A 86 37 HII 03 59 35.0 +67 06 58           ~ 2 0
21 [HM95] UGC-A 86 38 HII 03 59 36.3 +67 08 19           ~ 2 0
22 [HM95] UGC-A 86 39 HII 03 59 37.0 +67 08 04           ~ 2 0
23 [KM98] UGCA 86 19 HII 03 59 38.062 +67 04 45.20           ~ 1 0
24 [HM95] UGC-A 86 40 HII 03 59 38.1 +67 08 17           ~ 2 0
25 [HM95] UGC-A 86 41 HII 03 59 38.4 +67 08 29           ~ 2 0
26 [HM95] UGC-A 86 43 HII 03 59 38.9 +67 07 11           ~ 2 0
27 [HM95] UGC-A 86 42 HII 03 59 39.0 +67 08 09           ~ 2 0
28 [HM95] UGC-A 86 44 HII 03 59 39.8 +67 08 01           ~ 2 0
29 [HM95] UGC-A 86 45 HII 03 59 40.2 +67 08 13           ~ 2 0
30 [HM95] UGC-A 86 48 HII 03 59 40.7 +67 05 47           ~ 2 0
31 [HM95] UGC-A 86 47 HII 03 59 40.7 +67 07 17           ~ 2 0
32 [HM95] UGC-A 86 46 HII 03 59 40.8 +67 07 40           ~ 2 0
33 [HM95] UGC-A 86 50 HII 03 59 41.4 +67 06 04           ~ 2 0
34 [HM95] UGC-A 86 49 HII 03 59 41.6 +67 08 08           ~ 2 0
35 [HM95] UGC-A 86 53 HII 03 59 42.0 +67 07 41           ~ 2 0
36 [HM95] UGC-A 86 56 HII 03 59 43.1 +67 09 22           ~ 2 0
37 [HM95] UGC-A 86 58 HII 03 59 43.8 +67 08 33           ~ 2 0
38 [KM98] UGCA 86 35 HII 03 59 44.564 +67 07 54.00           ~ 1 0
39 [HM95] UGC-A 86 60 HII 03 59 44.6 +67 06 07           ~ 2 0
40 [HM95] UGC-A 86 61 HII 03 59 44.9 +67 06 28           ~ 2 0
41 [HM95] UGC-A 86 62 HII 03 59 46.1 +67 09 53           ~ 2 0
42 [HM95] UGC-A 86 63 HII 03 59 46.2 +67 06 02           ~ 2 0
43 [HM95] UGC-A 86 64 HII 03 59 48.1 +67 09 51           ~ 2 0
44 UGCA 86 AG? 03 59 48.30 +67 08 18.6   14.2 14.2     ~ 110 0
45 [HM95] UGC-A 86 67 HII 03 59 50.7 +67 07 42           ~ 2 0
46 [HM95] UGC-A 86 66 HII 03 59 50.7 +67 08 44           ~ 2 0
47 [KM98] UGCA 86 40 HII 03 59 51.620 +67 07 03.00           ~ 1 0
48 [HM95] UGC-A 86 68 HII 03 59 51.7 +67 08 54           ~ 2 0
49 [HM95] UGC-A 86 69 HII 03 59 52.1 +67 09 34           ~ 2 0
50 [HM95] UGC-A 86 72 HII 03 59 54.0 +67 06 09           ~ 2 0
51 [KM98] UGCA 86 44 HII 03 59 54.332 +67 06 32.60           ~ 1 0
52 [KM98] UGCA 86 45 HII 03 59 54.404 +67 09 14.20           ~ 1 0
53 [HM95] UGC-A 86 77 HII 03 59 55.1 +67 05 50           ~ 2 0
54 [HM95] UGC-A 86 78 HII 03 59 55.2 +67 06 13           ~ 2 0
55 [HM95] UGC-A 86 79 HII 03 59 55.3 +67 06 06           ~ 2 0
56 [KM98] UGCA 86 49 HII 03 59 55.521 +67 09 04.60           ~ 1 0
57 [KM98] UGCA 86 50 HII 03 59 55.709 +67 09 11.70           ~ 1 0
58 [KM98] UGCA 86 52 HII 03 59 56.134 +67 05 58.90           ~ 1 0
59 [HM95] UGC-A 86 81 HII 03 59 56.2 +67 06 24           ~ 3 0
60 [HM95] UGC-A 86 84 HII 03 59 57.8 +67 06 09           ~ 2 0
61 [KM98] UGCA 86 56 HII 03 59 59.438 +67 07 06.30           ~ 1 0
62 [HM95] UGC-A 86 86 HII 03 59 59.7 +67 09 57           ~ 2 0
63 [HM95] UGC-A 86 94 HII 04 00 00.5 +67 06 18           ~ 2 0
64 [HM95] UGC-A 86 95 HII 04 00 00.8 +67 05 53           ~ 2 0
65 GSC 04076-00876 * 04 00 01.7795238456 +67 09 11.284637652           ~ 1 0
66 [HM95] UGC-A 86 96 HII 04 00 02.1 +67 07 24           ~ 2 0
67 [HM95] UGC-A 86 99 HII 04 00 03.3 +67 05 48           ~ 2 0
68 [HM95] UGC-A 86 101 HII 04 00 05.2 +67 06 26           ~ 2 0
69 [HM95] UGC-A 86 102 HII 04 00 06.3 +67 07 04           ~ 2 0
70 [KM98] UGCA 86 63 HII 04 00 06.619 +67 06 08.10           ~ 1 0
71 [HM95] UGC-A 86 104 HII 04 00 07.9 +67 06 50           ~ 2 0
72 [HM95] UGC-A 86 108 HII 04 00 09.7 +67 07 13           ~ 2 0
73 [HM95] EGB 0427+63 2 HII 04 31 59.4 +63 36 27           ~ 2 0
74 [HM95] EGB 0427+63 5 HII 04 32 01.6 +63 36 33           ~ 2 0
75 [HM95] EGB 0427+63 6 HII 04 32 02.0 +63 36 27           ~ 2 0
76 [KM98] UGCA 92 4 HII 04 32 02.774 +63 37 06.80           ~ 1 0
77 UGCA 92 AG? 04 32 03.8366 +63 36 51.243   16.15       ~ 128 0
78 [KM98] UGCA 92 5 HII 04 32 04.470 +63 37 18.00           ~ 1 0
79 GSC 04069-01252 * 04 32 04.5217888584 +63 37 22.416814344   15.19 13.99 13.84   ~ 1 0
80 [KM98] UGCA 92 7 HII 04 32 04.590 +63 37 28.50           ~ 1 0
81 [KM98] UGCA 92 8 HII 04 32 04.665 +63 37 13.10           ~ 1 0
82 [HM95] EGB 0427+63 8 HII 04 32 04.7 +63 36 35           ~ 2 0
83 [KM98] UGCA 92 9 HII 04 32 04.890 +63 37 36.60           ~ 1 0
84 [HM95] EGB 0427+63 10 HII 04 32 05.8 +63 36 42           ~ 2 0
85 [KM98] UGCA 92 11 HII 04 32 06.331 +63 37 34.60           ~ 1 0
86 [HM95] EGB 0427+63 11 HII 04 32 07.1 +63 37 27           ~ 2 0
87 [HM95] EGB 0427+63 12 HII 04 32 07.6 +63 37 04           ~ 2 0
88 [HM95] EGB 0427+63 14 HII 04 32 08.0 +63 36 52           ~ 2 0
89 [HM95] EGB 0427+63 15 HII 04 32 08.4 +63 37 11           ~ 2 0
90 [HM95] EGB 0427+63 17 HII 04 32 09.3 +63 37 08           ~ 2 0
91 [KM98] UGCA 105 1 HII 05 13 58.985 +62 35 32.90           ~ 1 0
92 [KM98] UGCA 105 2 HII 05 14 00.176 +62 34 31.20           ~ 1 0
93 [KM98] UGCA 105 3 HII 05 14 00.596 +62 34 15.90           ~ 1 0
94 [KM98] UGCA 105 4 HII 05 14 01.173 +62 35 21.40           ~ 1 0
95 [KM98] UGCA 105 5 HII 05 14 03.187 +62 34 01.10           ~ 1 0
96 GSC 04084-02577 * 05 14 04.8385428960 +62 36 14.656557924           ~ 1 0
97 [KM98] UGCA 105 6 HII 05 14 05.126 +62 33 21.10           ~ 1 0
98 [KM98] UGCA 105 7 HII 05 14 05.358 +62 35 53.50           ~ 1 0
99 [KM98] UGCA 105 8 HII 05 14 05.994 +62 33 37.40           ~ 1 0
100 [KM98] UGCA 105 9 HII 05 14 06.024 +62 35 43.30           ~ 1 0
101 [KM98] UGCA 105 10 HII 05 14 06.212 +62 34 33.20           ~ 1 0
102 [KM98] UGCA 105 11 HII 05 14 06.602 +62 33 49.10           ~ 1 0
103 [KM98] UGCA 105 12 HII 05 14 06.746 +62 33 09.30           ~ 1 0
104 [KM98] UGCA 105 13 HII 05 14 07.500 +62 34 42.20           ~ 1 0
105 [KM98] UGCA 105 14 HII 05 14 08.183 +62 36 08.70           ~ 1 0
106 [KM98] UGCA 105 15 HII 05 14 09.055 +62 37 05.30           ~ 1 0
107 [KM98] UGCA 105 16 HII 05 14 09.150 +62 34 27.50           ~ 1 0
108 [KM98] UGCA 105 17 HII 05 14 09.236 +62 34 17.60           ~ 1 0
109 [KM98] UGCA 105 18 HII 05 14 09.329 +62 36 43.00           ~ 1 0
110 [KM98] UGCA 105 19 HII 05 14 09.627 +62 34 05.80           ~ 1 0
111 [KM98] UGCA 105 20 HII 05 14 10.004 +62 34 37.30           ~ 1 0
112 [KM98] UGCA 105 21 HII 05 14 10.599 +62 34 50.50           ~ 1 0
113 [KM98] UGCA 105 22 HII 05 14 10.712 +62 34 04.70           ~ 1 0
114 [KM98] UGCA 105 23 HII 05 14 10.934 +62 35 34.50           ~ 1 0
115 [KM98] UGCA 105 24 HII 05 14 11.022 +62 35 49.90           ~ 1 0
116 [KM98] UGCA 105 25 HII 05 14 11.121 +62 35 21.60           ~ 1 0
117 [KM98] UGCA 105 26 HII 05 14 11.260 +62 33 28.10           ~ 1 0
118 [KM98] UGCA 105 27 HII 05 14 11.435 +62 33 56.60           ~ 1 0
119 [KM98] UGCA 105 28 HII 05 14 12.153 +62 36 09.30           ~ 1 0
120 [KM98] UGCA 105 29 HII 05 14 12.430 +62 33 17.20           ~ 1 0
121 [KM98] UGCA 105 30 HII 05 14 13.045 +62 34 51.50           ~ 1 0
122 [KM98] UGCA 105 31 HII 05 14 13.374 +62 33 57.90           ~ 1 0
123 [KM98] UGCA 105 32 HII 05 14 14.267 +62 33 14.00           ~ 1 0
124 [KM98] UGCA 105 33 HII 05 14 14.296 +62 35 54.30           ~ 1 0
125 [KM98] UGCA 105 34 HII 05 14 14.374 +62 34 14.80           ~ 1 0
126 [KM98] UGCA 105 35 HII 05 14 14.442 +62 33 34.00           ~ 1 0
127 [KM98] UGCA 105 36 HII 05 14 14.800 +62 35 21.20           ~ 1 0
128 [KM98] UGCA 105 37 HII 05 14 14.970 +62 34 45.40           ~ 1 0
129 [KM98] UGCA 105 38 HII 05 14 14.978 +62 33 38.70           ~ 1 0
130 [KM98] UGCA 105 39 HII 05 14 15.044 +62 35 02.80           ~ 1 0
131 [KM98] UGCA 105 40 HII 05 14 15.222 +62 35 47.20           ~ 1 0
132 Z 283-4 GiG 05 14 15.3240846648 +62 34 47.964904644   15.3       ~ 90 1
133 [KM98] UGCA 105 41 HII 05 14 15.373 +62 34 24.10           ~ 1 0
134 [KM98] UGCA 105 42 HII 05 14 15.610 +62 35 12.00           ~ 1 0
135 [KM98] UGCA 105 43 HII 05 14 15.678 +62 34 30.20           ~ 1 0
136 [KM98] UGCA 105 44 HII 05 14 15.966 +62 34 13.90           ~ 1 0
137 [KM98] UGCA 105 45 HII 05 14 16.150 +62 33 37.70           ~ 1 0
138 [KM98] UGCA 105 46 HII 05 14 16.194 +62 33 48.10           ~ 1 0
139 [KM98] UGCA 105 47 HII 05 14 16.269 +62 34 04.10           ~ 1 0
140 [KM98] UGCA 105 48 HII 05 14 16.786 +62 35 41.90           ~ 1 0
141 [KM98] UGCA 105 49 HII 05 14 17.091 +62 33 44.00           ~ 1 0
142 [KM98] UGCA 105 50 HII 05 14 17.350 +62 33 31.70           ~ 1 0
143 [KM98] UGCA 105 51 HII 05 14 17.817 +62 34 00.80           ~ 1 0
144 [KM98] UGCA 105 52 HII 05 14 17.904 +62 36 01.80           ~ 1 0
145 [KM98] UGCA 105 53 HII 05 14 17.946 +62 35 50.40           ~ 1 0
146 [KM98] UGCA 105 54 HII 05 14 18.232 +62 35 25.10           ~ 1 0
147 [KM98] UGCA 105 55 HII 05 14 18.840 +62 35 21.40           ~ 1 0
148 [KM98] UGCA 105 56 HII 05 14 18.957 +62 35 33.40           ~ 1 0
149 [KM98] UGCA 105 57 HII 05 14 19.020 +62 34 19.20           ~ 1 0
150 [KM98] UGCA 105 58 HII 05 14 19.118 +62 33 52.40           ~ 1 0
151 [KM98] UGCA 105 59 HII 05 14 19.289 +62 33 32.50           ~ 1 0
152 [KM98] UGCA 105 60 HII 05 14 19.927 +62 33 41.30           ~ 1 0
153 [KM98] UGCA 105 61 HII 05 14 20.004 +62 34 14.60           ~ 1 0
154 [KM98] UGCA 105 62 HII 05 14 20.170 +62 35 02.00           ~ 1 0
155 [KM98] UGCA 105 63 HII 05 14 20.350 +62 34 06.80           ~ 1 0
156 [KM98] UGCA 105 64 HII 05 14 21.818 +62 33 15.20           ~ 1 0
157 [KM98] UGCA 105 65 HII 05 14 21.939 +62 35 22.20           ~ 1 0
158 [KM98] UGCA 105 66 HII 05 14 22.163 +62 34 31.50           ~ 1 0
159 [KM98] UGCA 105 67 HII 05 14 22.313 +62 35 03.90           ~ 1 0
160 [KM98] UGCA 105 68 HII 05 14 22.656 +62 34 41.20           ~ 1 0
161 [KM98] UGCA 105 69 HII 05 14 22.950 +62 36 28.30           ~ 1 0
162 [KM98] UGCA 105 70 HII 05 14 23.590 +62 36 46.00           ~ 1 0
163 [KM98] UGCA 105 71 HII 05 14 25.290 +62 34 35.80           ~ 1 0
164 [KM98] UGCA 105 72 HII 05 14 26.404 +62 35 48.00           ~ 1 0
165 [KM98] UGCA 105 73 HII 05 14 26.727 +62 36 08.50           ~ 1 0
166 [KM98] UGCA 105 74 HII 05 14 27.052 +62 36 37.00           ~ 1 0
167 [KM98] UGCA 105 75 HII 05 14 27.131 +62 34 47.50           ~ 1 0
168 [KM98] UGCA 105 76 HII 05 14 27.709 +62 37 00.70           ~ 1 0
169 [KM98] UGCA 105 77 HII 05 14 27.821 +62 34 27.40           ~ 1 0
170 [KM98] UGCA 105 78 HII 05 14 28.135 +62 36 21.10           ~ 1 0
171 [KM98] UGCA 105 79 HII 05 14 28.305 +62 36 01.70           ~ 1 0
172 [KM98] UGCA 105 80 HII 05 14 28.656 +62 35 12.10           ~ 1 0
173 [KM98] UGCA 105 81 HII 05 14 29.403 +62 35 50.20           ~ 1 0
174 [KM98] UGCA 105 82 HII 05 14 30.137 +62 36 30.90           ~ 1 0
175 [KM98] UGCA 105 83 HII 05 14 30.482 +62 35 18.30           ~ 1 0
176 [KM98] UGCA 105 84 HII 05 14 33.901 +62 35 23.20           ~ 1 0
177 [KM98] UGCA 105 85 HII 05 14 34.296 +62 33 54.30           ~ 1 0
178 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 19090 0
179 Z 87-30 G 07 41 56.3059298112 +16 48 07.451632188   15.4       ~ 233 0
180 GSC 00792-00729 * 07 55 35.2135104240 +13 30 30.348467208           ~ 1 0
181 [KM98] UGC 4115 1 HII 07 56 38.5 +14 20 45           ~ 1 0
182 [KM98] UGC 4115 2 HII 07 56 38.9 +14 21 11           ~ 1 0
183 [KM98] UGC 4115 3 HII 07 56 39.0 +14 20 36           ~ 1 0
184 [KM98] UGC 4115 4 HII 07 56 39.2 +14 21 02           ~ 1 0
185 [KM98] UGC 4115 5 HII 07 56 39.4 +14 20 31           ~ 1 0
186 [KM98] UGC 4115 6 HII 07 56 39.6 +14 20 40           ~ 1 0
187 [KM98] UGC 4115 7 HII 07 56 39.8 +14 21 24           ~ 1 0
188 [KM98] UGC 4115 8 HII 07 56 40.0 +14 20 23           ~ 1 0
189 [KM98] UGC 4115 9 HII 07 56 40.1 +14 20 39           ~ 1 0
190 [KM98] UGC 4115 10 HII 07 56 40.1 +14 20 52           ~ 1 0
191 [KM98] UGC 4115 11 HII 07 56 41.1 +14 20 17           ~ 1 0
192 [KM98] UGC 4115 12 HII 07 56 41.1 +14 20 51           ~ 1 0
193 [KM98] UGC 4115 13 HII 07 56 41.2 +14 20 26           ~ 1 0
194 [KM98] UGC 4115 14 HII 07 56 41.6 +14 20 39           ~ 1 0
195 [KM98] UGC 4115 15 HII 07 56 41.7 +14 20 19           ~ 1 0
196 [KM98] UGC 4115 16 HII 07 56 42.0 +14 20 26           ~ 1 0
197 [KM98] UGC 4115 17 HII 07 56 42.3 +14 20 12           ~ 1 0
198 Z 88-7 G 07 57 01.027 +14 23 47.66   16.0       ~ 161 0
199 Z 311-8 GiG 08 34 07.20 +66 10 54.0 15.39 15.03 14.70 14.49   ~ 357 2
200 MCG-01-26-030 H2G 10 11 00.5 -04 41 30 12.48 12.13 11.93 11.78   ~ 789 2
201 NGC 3938 GiG 11 52 49.4335936248 +44 07 14.697085116 10.80 10.90 10.38     ~ 566 1
202 NGC 4414 GiC 12 26 27.1276893168 +31 13 24.626206488 11.12 10.96 10.12     ~ 593 2
203 Z 71-87 H2G 12 58 40.1930636208 +14 13 00.739589628 15.24 15.16 14.98 14.81   ~ 475 0
204 MCG+08-24-090 AG? 13 13 22.839 +46 19 21.71   17       ~ 135 1
205 Z 245-36 AG? 13 14 27.997 +45 55 11.14 13.63 13.26 13.02 12.81   ~ 297 0
206 NGC 6822 G 19 44 56.199 -14 47 51.29   18 8.1     ~ 1661 0

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