2010A&A...517A..32P

Query : 2010A&A...517A..32P

2010A&A...517A..32P - Astronomy and Astrophysics, volume 517, A32-32 (2010/7-1)

On the metallicity of open clusters. I. Photometry.

PAUNZEN E., HEITER U., NETOPIL M. and SOUBIRAN C.

Abstract (from CDS):

Metallicity is one of four free parameters typically considered when fitting isochrones to the cluster sequence. Unfortunately, this parameter is often ignored or assumed to be solar in most papers. Hence an unknown bias is introduced in the estimation of the other three cluster parameters (age, reddening and distance). Furthermore, studying the metallicity of open clusters allows us not only to derive the Galactic abundance gradient on a global scale, but also to trace the local solar environment in more detail. In a series of three papers, we investigate the current status of published metallicities for open clusters from widely different photometric and spectroscopic methods. A detailed comparison of the results allows us to establish more reliable photometric calibrations and corrections for isochrone fitting techniques. Well established databases such as WEBDA help us to perform a homogeneous analysis of available measurements for a significant number of open clusters. The literature was searched for [Fe/H] estimates on the basis of photometric calibrations in any available filter system. On the basis of results published by Tadross, we demonstrate the caveats of the calibration choice and its possible impact. In total, we find 406 individual metallicity values for 188 open clusters within 64 publications. The values were, finally, unweightedly averaged. Our final sample includes [Fe/H] values for 188 open clusters. Tracing the solar environment within 4000x4000pc2 we identify a patchy metallicity distribution as an extension to the Local Bubble that significantly influences the estimation of the Galactic metallicity gradient, even on a global scale. In addition, further investigations of more distant open clusters are clearly needed to obtain a more profound picture at Galactocentric distances beyond 10000pc. Only a combination of all available photometric and spectroscopic data will shed more light on how the local and global Galactic properties are correlated with metallicity.

Abstract Copyright: ∼

Journal keyword(s): Galaxy: abundances - open clusters and associations: general - stars: abundances

Simbad objects: 195

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Number of rows : 195
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 Cl Berkeley 58 OpC 00 00 15.1 +60 56 13   10.39 9.7     ~ 63 0
2 Cl Berkeley 1 OpC 00 09 47.8 +60 28 34           ~ 29 0
3 Cl Berkeley 60 OpC 00 17 45.6 +60 56 10           ~ 37 0
4 NGC 103 OpC 00 25 14.9 +61 19 34   10.28 9.8     ~ 79 0
5 Cl Berkeley 2 OpC 00 25 16.6 +60 23 31           ~ 32 0
6 NGC 129 OpC 00 30 25.7 +60 12 47   7.33 6.5     ~ 203 0
7 NGC 188 OpC 00 47 11.5 +85 14 38           ~ 922 0
8 Cl King 2 OpC 00 50 57.8 +58 11 17   21.39 19.78     ~ 62 0
9 IC 1590 OpC 00 52 49 +56 37.7           ~ 65 0
10 Cl Berkeley 62 OpC 01 01 14.2 +63 55 05   9.98 9.3     ~ 50 0
11 NGC 366 OpC 01 06 29.8 +62 13 08           ~ 39 0
12 NGC 381 OpC 01 08 19.9 +61 35 02           ~ 68 0
13 NGC 433 OpC 01 15 11.5 +60 07 59           ~ 50 0
14 NGC 436 OpC 01 16 00.2 +58 49 12   8.01 8.8     ~ 75 0
15 NGC 457 OpC 01 19 32.9 +58 16 41   6.97 6.4     ~ 244 2
16 M 103 OpC 01 33 21.4 +60 39 32   7.72 7.4     ~ 201 0
17 Cl Trumpler 1 OpC 01 35 40 +61 17.0   8.35 8.1     ~ 102 0
18 NGC 654 OpC 01 44 01.9 +61 52 59   7.34 6.5     ~ 198 0
19 NGC 663 OpC 01 46 21 +61 12.7   7.78 7.1     ~ 255 0
20 Cl Berkeley 7 OpC 01 54 11.0 +62 21 58           ~ 44 0
21 NGC 752 OpC 01 56 53.5 +37 47 38           ~ 642 0
22 Cl Stock 2 OpC 02 15 25.4 +59 31 19           ~ 128 0
23 IC 1805 OpC 02 32 50.4 +61 28 16           ~ 519 1
24 NGC 1039 OpC 02 42 07.4 +42 43 19           ~ 430 0
25 NGC 1193 OpC 03 05 56.6 +44 22 59     12.6     ~ 88 0
26 Cl Melotte 20 OpC 03 26 28.1 +48 58 30           ~ 861 0
27 NGC 1342 OpC 03 31 34.6 +37 22 48   7.35 6.7     ~ 123 0
28 IC 348 OpC 03 44 31.7 +32 09 32           ~ 1392 1
29 Cl Melotte 22 OpC 03 46 24.2 +24 06 50           ~ 3435 0
30 Cl King 7 OpC 03 59 07.9 +51 47 06           ~ 66 0
31 NGC 1528 OpC 04 15 30.7 +51 13 05   6.83 6.4     ~ 120 0
32 NGC 1545 OpC 04 20 48.5 +50 13 16   7.2 6.2     ~ 111 0
33 Cl Melotte 25 OpC 04 29 47.3 +16 56 53           ~ 3074 0
34 NGC 1662 OpC 04 48 47.5 +10 52 55   7.0 6.4     ~ 137 0
35 Cl Berkeley 14 OpC 04 59 44.4 +43 29 17           ~ 45 1
36 NGC 1750 OpC 05 03 42.2 +23 41 42           ~ 64 1
37 NGC 1758 OpC 05 04 42.0 +23 48 47           ~ 49 0
38 NGC 1798 OpC 05 11 39.4 +47 41 28           ~ 73 0
39 NGC 1817 OpC 05 12 33.4 +16 41 46           ~ 180 0
40 NGC 1931 OpC 05 31 23 +34 14.0     10.1     ~ 127 0
41 Cl Collinder 74 OpC 05 48 40.8 +07 22 26     14.4     ~ 34 0
42 Cl Berkeley 21 OpC 05 51 43.2 +21 48 43   12.26 11.1     ~ 118 0
43 M 37 OpC 05 52 17.8 +32 32 42   6.19 5.6     ~ 401 2
44 NGC 2112 OpC 05 53 48.5 +00 24 11     9.1     ~ 91 0
45 Cl Berkeley 22 OpC 05 58 28.3 +07 45 47           ~ 84 0
46 NGC 2158 OpC 06 07 26.9 +24 05 56           ~ 294 0
47 NGC 2168 OpC 06 09 05.3 +24 20 10           ~ 558 0
48 NGC 2194 OpC 06 13 45.6 +12 48 47   9.03 8.5     ~ 84 1
49 NGC 2192 OpC 06 15 17 +39 50.8     10.9     ~ 47 0
50 NGC 2204 OpC 06 15 31.7 -18 40 12   9.35 8.6     ~ 153 0
51 NGC 2232 OpC 06 27 33.1 -04 44 56           ~ 185 0
52 NGC 2243 OpC 06 29 34.8 -31 16 55   10.12 9.4     ~ 269 0
53 NGC 2236 OpC 06 29 39.8 +06 50 02   9.08 8.5     ~ 54 0
54 NGC 2244 OpC 06 32 10.8 +04 54 50           ~ 634 1
55 NGC 2251 OpC 06 34 43.2 +08 20 13   7.69 7.3     ~ 113 0
56 NGC 2264 OpC 06 40 52.1 +09 52 37           ~ 1793 0
57 NGC 2266 OpC 06 43 19.7 +26 58 34     9.5     ~ 76 0
58 M 41 OpC 06 45 59.8 -20 42 58   4.89 4.5     ~ 283 0
59 NGC 2281 OpC 06 48 21.8 +41 03 36   6.05 5.4     ~ 155 0
60 NGC 2301 OpC 06 51 46.3 +00 27 54   6.30 6.0     ~ 159 0
61 Cl Berkeley 28 OpC 06 52 06.7 +02 55 19           ~ 34 0
62 Cl Berkeley 29 OpC 06 53 04.2 +16 55 39   14.3       ~ 174 0
63 Cl Berkeley 31 OpC 06 57 37.4 +08 17 06           ~ 128 0
64 Cl Berkeley 30 OpC 06 57 45.1 +03 13 44           ~ 46 0
65 Cl Berkeley 32 OpC 06 58 07.2 +06 25 59           ~ 145 0
66 Cl Haffner 2 OpC 07 03 05.5 -20 49 12           ~ 130 0
67 NGC 2324 OpC 07 04 07.9 +01 02 46   8.83 8.4     ~ 159 0
68 NGC 2335 OpC 07 06 46 -10 01.4   7.76 7.2     ~ 83 0
69 NGC 2343 OpC 07 08 07.0 -10 37 08   7.05 6.7     ~ 82 0
70 NGC 2354 OpC 07 14 00.7 -25 43 26   7.28 6.5     ~ 96 0
71 NGC 2355 OpC 07 16 59.3 +13 46 19     9.7     ~ 106 0
72 NGC 2360 OpC 07 17 46.3 -15 37 52           ~ 194 0
73 Cl Haffner 8 OpC 07 23 06.5 -12 18 36   9.61 9.1     ~ 42 0
74 Cl Collinder 140 OpC 07 23 31.7 -31 57 58           ~ 131 0
75 Cl Ruprecht 18 OpC 07 24 38.4 -26 12 47   9.90 9.4     ~ 50 0
76 Cl Melotte 66 OpC 07 26 17.5 -47 41 06   8.73       ~ 196 0
77 Cl Ruprecht 20 OpC 07 26 43 -28 49.0   10.22 9.5     ~ 21 0
78 NGC 2422 OpC 07 36 35.3 -14 29 20           ~ 246 0
79 NGC 2423 OpC 07 37 11.8 -13 51 47           ~ 149 0
80 Cl Melotte 71 OpC 07 37 31.9 -12 03 54   7.44 7.1     ~ 130 0
81 NGC 2420 OpC 07 38 24.5 +21 34 30   9.0 8.3     ~ 476 0
82 NGC 2437 OpC 07 41 46.8 -14 50 38           ~ 156 0
83 NGC 2451A OpC 07 42 56.6 -38 15 50           ~ 129 0
84 NGC 2447 OpC 07 44 33.8 -23 51 11           ~ 149 1
85 BRAN 66A RNe 07 44 57.8947652376 -25 30 42.178944888   15.41 14.57 14.92 13.47 ~ 29 1
86 Cl Ruprecht 32 OpC 07 45 12 -25 32.3   8.44 8.4     ~ 38 0
87 NGC 2451 Cl* 07 45.4 -37 58           ~ 158 1
88 Cl Berkeley 39 OpC 07 46 48.5 -04 39 54           ~ 190 1
89 NGC 2477 OpC 07 52 11.0 -38 32 13   6.64 5.8     ~ 290 0
90 NGC 2482 OpC 07 55 08.9 -24 15 47   7.71 7.3     ~ 92 0
91 NGC 2489 OpC 07 56 15.4 -30 03 36   8.58 7.9     ~ 77 0
92 NGC 2516 OpC 07 58 06.5 -60 48 00           ~ 713 0
93 NGC 2506 OpC 08 00 02.4 -10 46 23   8.28 7.6     ~ 276 0
94 Cl Ruprecht 46 err 08 02 11 -19 27.9           ~ 31 0
95 Cl Collinder 173 OpC 08 02 49.00 -46 23 00.0           ~ 33 0
96 NGC 2527 OpC 08 04 59.0 -28 07 19   6.81 6.5     ~ 104 0
97 NGC 2547 OpC 08 09 52.360 -49 10 35.01           ~ 400 0
98 NGC 2539 OpC 08 10 37.9 -12 50 02   7.05 6.5     ~ 145 0
99 NGC 2546 OpC 08 12 19.7 -37 39 40   6.46 6.3     ~ 114 0
100 NGC 2548 OpC 08 13 38.9 -05 43 34           ~ 182 0
101 NGC 2567 OpC 08 18 34.8 -30 37 52   7.77 7.4     ~ 91 0
102 NGC 2571 OpC 08 18 54 -29 46.5   7.16 7.0     ~ 76 0
103 Cl Pismis 4 OpC 08 35 09.6 -44 24 25   6.16 5.9     ~ 70 0
104 NGC 2627 OpC 08 37 14.2 -29 57 07     8.4     ~ 60 0
105 NGC 2632 OpC 08 40 13.0 +19 37 16           ~ 1564 0
106 IC 2391 OpC 08 41 10.1 -52 59 28           ~ 822 0
107 NGC 2660 OpC 08 42 40.1 -47 12 04   9.05 8.8     ~ 152 0
108 NGC 2658 OpC 08 43 28.3 -32 39 43     9.2     ~ 48 0
109 NGC 2669 OpC 08 46 26.6 -52 55 52   6.35 6.1     ~ 69 0
110 Cl Trumpler 10 OpC 08 47 46.3 -42 33 58           ~ 175 0
111 NGC 2682 OpC 08 51 23.0 +11 48 50           ~ 2342 0
112 NGC 2818 OpC 09 16 10.6 -36 37 26           ~ 88 1
113 IC 2488 OpC 09 27 25.7 -57 00 14           ~ 65 0
114 NGC 2910 OpC 09 30 34 -52 54.8   7.49 7.2     ~ 56 0
115 NGC 2972 OpC 09 40 13.9 -50 19 34   10.72 9.9     ~ 57 0
116 Cl Ruprecht 79 OpC 09 41 02.2 -53 50 46           ~ 83 0
117 NGC 3114 OpC 10 02 12.7 -60 02 28   4.47 4.2     ~ 195 0
118 Cl Trumpler 11 OpC 10 04 59.5 -61 37 08   8.21 8.1     ~ 27 0
119 IC 2602 OpC 10 42 27.1 -64 25 34           ~ 675 0
120 Cl Trumpler 14 OpC 10 43 56.6 -59 33 11   5.70 5.5     ~ 509 0
121 NGC 3532 OpC 11 05 40.1 -58 42 25           ~ 350 0
122 IC 2714 OpC 11 17 29.5 -62 43 08     8.2     ~ 97 0
123 Cl Melotte 105 OpC 11 19 40.8 -63 29 10   9.05 8.5     ~ 76 0
124 NGC 3680 OpC 11 25 34.1 -43 14 24   8.40 7.6     ~ 319 0
125 NGC 3766 OpC 11 36 14.6 -61 36 58   5.66 5.3     ~ 213 0
126 NGC 3960 OpC 11 50 34.6 -55 40 44   9.07 8.3     ~ 140 0
127 Cl Ruprecht 97 OpC 11 57 28.6 -62 42 29   9.77 9.1     ~ 42 0
128 NGC 4103 OpC 12 06 30.7 -61 14 42     7.4     ~ 96 1
129 Cl Melotte 111 OpC 12 24 03.4 +25 39 07           ~ 480 0
130 NGC 4349 OpC 12 24 11.5 -61 51 58   8.01 7.4     ~ 113 0
131 Cl Collinder 258 OpC 12 27 11.5 -60 46 01   7.39 7.1     ~ 68 1
132 NGC 4609 OpC 12 42 19.7 -62 59 42   7.32 6.9     ~ 89 0
133 NGC 4755 OpC 12 53 39.6 -60 22 16           ~ 289 0
134 NGC 4815 OpC 12 57 59.8 -64 57 36   9.61 8.6     ~ 98 0
135 Cl Loden 807 OpC 13 24 38 -62 29.7           ~ 28 0
136 NGC 5138 OpC 13 27 19 -59 01.4           ~ 60 0
137 Cl Collinder 272 OpC 13 30 20.6 -61 19 08   8.25 7.7     ~ 64 0
138 NGC 5168 OpC 13 31 09.8 -60 56 42   9.55 9.1     ~ 57 0
139 NGC 5281 OpC 13 46 27.4 -62 54 58   6.15 5.9     ~ 87 0
140 NGC 5288 OpC 13 48 46.3 -64 40 48     11.8     ~ 24 0
141 NGC 5316 OpC 13 54 03.8 -61 52 59   6.08 6.0     ~ 101 0
142 NGC 5606 OpC 14 27 47 -59 37.9           ~ 102 0
143 NGC 5617 OpC 14 29 48.5 -60 43 08           ~ 101 0
144 NGC 5662 OpC 14 34 56.2 -56 38 24   6.18 5.5     ~ 122 0
145 NGC 5822 OpC 15 04 12.2 -54 21 58           ~ 208 0
146 Cl Pismis 20 OpC 15 15 23.5 -59 04 23   8.69 7.8     ~ 100 0
147 NGC 6025 OpC 16 03 07.0 -60 25 48           ~ 104 0
148 NGC 6067 OpC 16 13 11.8 -54 13 37           ~ 211 0
149 NGC 6087 OpC 16 18 53.0 -57 54 58           ~ 182 0
150 NGC 6134 OpC 16 27 48.7 -49 09 40   7.89 7.2     ~ 152 0
151 NGC 6192 OpC 16 40 18.5 -43 21 18           ~ 90 0
152 NGC 6204 OpC 16 46 09 -47 01.6   8.51 8.2     ~ 129 0
153 NGC 6208 OpC 16 49 20.6 -53 42 50   8.06 7.2     ~ 80 0
154 NGC 6231 OpC 16 54 10.8 -41 48 43           ~ 538 0
155 NGC 6259 OpC 17 00 46.8 -44 40 41   8.85 8.0     ~ 80 0
156 NGC 6281 OpC 17 04 43.0 -37 56 53           ~ 137 0
157 IC 4651 OpC 17 24 50.9 -49 55 01           ~ 350 0
158 NGC 6405 OpC 17 40 16.6 -32 14 31           ~ 200 0
159 NAME Galactic Center reg 17 45 39.60213 -29 00 22.0000           ~ 14412 0
160 IC 4665 OpC 17 46 13.0 +05 36 54           ~ 372 0
161 NGC 6425 OpC 17 46 55.9 -31 30 25   7.90 7.2     ~ 64 0
162 NGC 6451 OpC 17 50 42.0 -30 12 22     8.2     ~ 55 0
163 NGC 6475 OpC 17 53 47.3 -34 50 28           ~ 384 0
164 M 23 OpC 17 56 56.9 -18 59 13           ~ 132 0
165 NGC 6520 OpC 18 03 25.4 -27 53 02     7.6     ~ 67 0
166 M 16 OpC 18 18 45.1 -13 47 31           ~ 1029 1
167 NGC 6633 OpC 18 27 22.8 +06 36 54           ~ 385 0
168 IC 4725 OpC 18 31 44.9 -19 06 50           ~ 222 0
169 NGC 6649 OpC 18 33 26.2 -10 23 56   10.35 8.9     ~ 134 0
170 IC 4756 OpC 18 38 35.8 +05 26 06           ~ 241 0
171 Cl Berkeley 79 OpC 18 45 00 -01 08.8           ~ 27 0
172 NGC 6705 OpC 18 51 03.8 -06 16 19   6.32 5.8     ~ 411 0
173 NGC 6716 OpC 18 54 27.8 -19 53 17   7.70 7.5     ~ 71 0
174 NGC 6749 OpC 19 05 15.36 +01 54 00.0     12.4     ~ 157 0
175 NGC 6755 OpC 19 07 46.1 +04 13 26   8.60 7.5     ~ 84 0
176 NGC 6791 OpC 19 20 53.0 +37 46 41   10.52 9.5     ~ 1040 0
177 NGC 6823 OpC 19 43 10.6 +23 19 16   7.71 7.1     ~ 270 2
178 NGC 6871 OpC 20 06 11.5 +35 45 54   5.43 5.2     ~ 225 0
179 IC 1311 OpC 20 10 47.3 +41 10 37     13.1     ~ 52 0
180 IC 4996 OpC 20 16 32.4 +37 38 56           ~ 177 0
181 Cl Berkeley 86 OpC 20 20 20 +38 41.3           ~ 123 0
182 M 29 OpC 20 23 46 +38 29.2   7.30 6.6     ~ 245 0
183 NGC 6940 OpC 20 34 30.2 +28 16 41           ~ 190 0
184 NGC 7044 OpC 21 13 08.2 +42 29 38     12.0     ~ 65 0
185 NGC 7082 OpC 21 28 44.6 +47 06 11   7.70 7.2     ~ 56 0
186 NGC 7092 OpC 21 31 33.4 +48 14 49           ~ 223 0
187 NGC 7209 OpC 22 04 53.8 +46 30 29   8.24 7.7     ~ 128 0
188 NGC 7235 OpC 22 12 19.9 +57 16 16   8.58 7.7     ~ 114 0
189 NGC 7380 OpC 22 47 16 +58 07.5           ~ 190 0
190 NGC 7419 OpC 22 54 19.0 +60 48 50     13.0     ~ 106 0
191 Cl King 10 OpC 22 54 59.5 +59 10 12           ~ 44 0
192 Cl King 11 OpC 23 47 38.9 +68 38 10   16.7       ~ 68 0
193 NGC 7789 OpC 23 57 20.2 +56 43 34   7.68 6.7     ~ 528 0
194 NGC 7790 OpC 23 58 27.1 +61 12 36   9.18 8.5     ~ 272 0
195 NAME Local Bubble ISM ~ ~           ~ 898 0

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