2012A&A...548A.122B


Query : 2012A&A...548A.122B

2012A&A...548A.122B - Astronomy and Astrophysics, volume 548A, 122-122 (2012/12-1)

Searching for multiple stellar populations in the massive, old open cluster Berkeley 39.

BRAGAGLIA A., GRATTON R.G., CARRETTA E., D'ORAZI V., SNEDEN C. and LUCATELLO S.

Abstract (from CDS):

The most massive star clusters include several generations of stars with a different chemical composition (mainly revealed by an Na-O anti-correlation) while low-mass star clusters appear to be chemically homogeneous. We are investigating the chemical composition of several clusters with masses of a few 104M to establish the lower mass limit for the multiple stellar population phenomenon. Using VLT/FLAMES spectra we determine abundances of Fe, O, Na, and several other elements (α, Fe-peak, and neutron-capture elements) in the old open cluster Berkeley 39. This is a massive open cluster: M∼104M, approximately at the border between small globular clusters and large open clusters. Our sample size of about 30 stars is one of the largest studied for abundances in any open cluster to date, and will be useful to determine improved cluster parameters, such as age, distance, and reddening when coupled with precise, well-calibrated photometry. We find that Berkeley 39 is slightly metal-poor, <[Fe/H]≥-0.20, in agreement with previous studies of this cluster. More importantly, we do not detect any star-to-star variation in the abundances of Fe, O, and Na within quite stringent upper limits. The rms scatter is 0.04, 0.10, and 0.05dex for Fe, O, and Na, respectively. This small spread can be entirely explained by the noise in the spectra and by uncertainties in the atmospheric parameters. We conclude that Berkeley 39 is a single-population cluster.

Abstract Copyright:

Journal keyword(s): stars: abundances - open clusters and associations: general - open clusters and associations: individual: Berkeley 39 - stars: atmospheres

VizieR on-line data: <Available at CDS (J/A+A/548/A122): table2.dat stars.dat table3.dat uves.dat giraffe.dat>

Simbad objects: 124

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Number of rows : 124
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2023
#notes
1 Cl Pal 1 GlC 03 33 20.04 +79 34 51.8   17.2       ~ 229 1
2 Cl* Berkeley 39 KUBVI 3150 * 07 46 19.4098086672 -04 35 51.945833832   17.802 16.976   16.406 ~ 1 0
3 Cl* Berkeley 39 KUBVI 3130 * 07 46 19.9433657256 -04 36 52.257468780   17.812 17.063   16.169 ~ 1 0
4 Cl* Berkeley 39 KUBVI 3100 * 07 46 20.5699849968 -04 42 46.263692988   18.100 16.955   16.140 ~ 1 0
5 Cl* Berkeley 39 KUBVI 3090 * 07 46 20.7278558088 -04 38 04.458065676   15.529 14.338   13.124 ~ 1 0
6 Cl* Berkeley 39 KUBVI 3024 * 07 46 22.1764552392 -04 41 17.152681236   17.737 16.560   15.360 ~ 1 0
7 Cl* Berkeley 39 KUBVI 2976 * 07 46 23.8733955672 -04 42 50.224170060   17.534 16.589   15.682 ~ 1 0
8 Cl* Berkeley 39 KUBVI 2962 * 07 46 24.1216078944 -04 40 14.763283500   17.766 16.870   15.915 ~ 5 0
9 Cl* Berkeley 39 KUBVI 2948 * 07 46 24.5311222296 -04 41 25.938994920   18.160 17.420   16.585 ~ 5 0
10 Cl* Berkeley 39 KUBVI 2913 * 07 46 25.3098064680 -04 36 37.957019976   17.874 17.179   16.446 ~ 4 0
11 Cl* Berkeley 39 KUBVI 2832 * 07 46 27.1888047024 -04 34 28.244753220   17.544 17.046   16.345 ~ 1 0
12 Cl* Berkeley 39 KUBVI 2820 * 07 46 27.4708859376 -04 41 06.471321576   18.103 16.927   15.693 ~ 1 0
13 Cl* Berkeley 39 FMP 20797 * 07 46 28.5719577168 -04 38 35.482751376   17.936 17.343   16.599 ~ 2 0
14 Cl* Berkeley 39 KUBVI 2688 * 07 46 30.8095942200 -04 43 17.755996080   17.449 16.771   15.984 ~ 1 0
15 Cl* Berkeley 39 KUBVI 2644 * 07 46 32.0947944288 -04 38 01.702532832   17.690 17.129   16.418 ~ 1 0
16 Cl* Berkeley 39 KUBVI 2626 * 07 46 32.4292199740 -04 39 48.274663425   18.174 17.491   16.689 ~ 3 0
17 Cl* Berkeley 39 KUBVI 2560 * 07 46 33.6432603336 -04 34 35.352794352   17.971 17.024   16.167 ~ 1 0
18 Cl* Berkeley 39 FMP 21087 * 07 46 35.5990933656 -04 42 09.843465096   17.793 17.089   16.251 ~ 6 0
19 Cl* Berkeley 39 KUBVI 2415 * 07 46 36.5223184536 -04 39 48.343505544   17.478 16.775   15.983 ~ 5 0
20 Cl* Berkeley 39 KUBVI 2380 * 07 46 37.0849668192 -04 39 07.291509660   17.757 16.740   15.695 ~ 5 0
21 Cl* Berkeley 39 FMP 21152 HB* 07 46 37.1591401463 -04 40 11.556215893   15.277 14.075   12.879 ~ 9 0
22 Cl* Berkeley 39 KUBVI 2373 * 07 46 37.2629269704 -04 36 51.998556960   18.123 17.125   16.051 ~ 1 0
23 Cl* Berkeley 39 KUBVI 2324 * 07 46 38.4067899960 -04 40 06.465526932   17.713 16.993   16.146 ~ 1 0
24 Cl* Berkeley 39 FMP 21247 * 07 46 38.9732073504 -04 41 56.276434284   16.048 14.828   13.627 ~ 6 0
25 Cl* Berkeley 39 KUBVI 2278 * 07 46 39.0140163696 -04 35 23.071675992   17.745 17.067   16.258 ~ 1 0
26 Cl* Berkeley 39 KUBVI 2290 * 07 46 39.0253139352 -04 46 57.423557640   17.399 15.959   14.375 ~ 1 0
27 Cl* Berkeley 39 KR 9 HB* 07 46 39.2703886536 -04 37 54.285867480   15.444 14.199   12.996 ~ 13 0
28 Cl* Berkeley 39 KUBVI 2259 * 07 46 39.5145809520 -04 46 16.541416848   17.948 17.089   16.167 ~ 1 0
29 Cl* Berkeley 39 FMP 21322 * 07 46 39.9665001792 -04 45 51.565958496   17.790 16.997   16.078 ~ 2 0
30 Cl* Berkeley 39 KUBVI 2231 * 07 46 39.9936736536 -04 46 50.192545584   18.058 17.158   16.256 ~ 1 0
31 Cl* Berkeley 39 KUBVI 2184 * 07 46 40.7254240488 -04 41 56.543187948   17.836 16.906   16.131 ~ 3 0
32 Cl* Berkeley 39 KUBVI 2177 * 07 46 40.8121628664 -04 37 21.186311772   17.600 16.781   15.842 ~ 5 0
33 Cl* Berkeley 39 KUBVI 2170 * 07 46 40.9074211056 -04 38 04.778018988   18.266 17.564   16.767 ~ 4 0
34 Cl* Berkeley 39 KUBVI 2151 * 07 46 41.0981156160 -04 35 07.385206632   17.329 16.751   16.021 ~ 1 0
35 Cl* Berkeley 39 FMP 21365 HB* 07 46 41.2535939544 -04 40 57.118449396   15.598 14.377   13.198 ~ 8 0
36 Cl* Berkeley 39 FMP 21366 HB* 07 46 41.4376184808 -04 39 08.464628844   15.619 14.417   13.132 ~ 14 0
37 Cl* Berkeley 39 KUBVI 2088 * 07 46 42.0413173320 -04 39 19.180553904   14.743 13.004   11.304 ~ 4 0
38 Cl* Berkeley 39 KR 17 * 07 46 42.0442112424 -04 41 05.987519304   15.958 14.740   13.504 ~ 7 0
39 Cl* Berkeley 39 KUBVI 2050 * 07 46 42.4232485800 -04 35 00.659524524   17.526 16.878   16.077 ~ 5 0
40 Cl* Berkeley 39 FMP 21426 * 07 46 42.4720442232 -04 41 28.289826852   17.576 16.792   15.992 ~ 6 0
41 Cl* Berkeley 39 KUBVI 2033 * 07 46 42.6828184152 -04 40 02.926097976   17.940 16.986   15.912 ~ 4 0
42 Cl* Berkeley 39 KUBVI 2018 * 07 46 42.9570310224 -04 34 53.427767376   17.570 16.909   16.124 ~ 4 0
43 Cl* Berkeley 39 KUBVI 2000 * 07 46 43.3600460184 -04 43 19.945777080   17.850 17.160   16.410 ~ 5 0
44 Cl* Berkeley 39 KUBVI 2001 * 07 46 43.3839133128 -04 45 36.785269728   17.826 17.064   16.195 ~ 5 0
45 Cl* Berkeley 39 KUBVI 1962 * 07 46 43.9683752112 -04 44 33.045710136   17.624 16.807   15.920 ~ 5 0
46 Cl* Berkeley 39 KUBVI 1952 * 07 46 44.0686866672 -04 39 33.233205852   17.453 16.678   15.778 ~ 4 0
47 Cl* Berkeley 39 KUBVI 1926 * 07 46 44.4748008792 -04 41 37.711420836   17.551 16.698   15.926 ~ 4 0
48 Cl* Berkeley 39 KUBVI 1833 * 07 46 45.4661246544 -04 32 53.432126448   17.881 16.950   16.009 ~ 1 0
49 Cl* Berkeley 39 KUBVI 1836 * 07 46 45.5829801648 -04 42 47.088769248   17.581 16.803   15.910 ~ 5 0
50 Cl* Berkeley 39 KUBVI 1762 * 07 46 46.2285273000 -04 37 52.842671400   17.548 16.877   16.008 ~ 1 0
51 Cl* Berkeley 39 KUBVI 1761 * 07 46 46.2854529240 -04 40 03.937476360   17.690 16.582   15.437 ~ 5 0
52 Cl* Berkeley 39 KUBVI 1687 * 07 46 47.1934673664 -04 37 32.100843432   17.659 16.806   15.876 ~ 5 0
53 Cl* Berkeley 39 KUBVI 1675 * 07 46 47.4729787584 -04 41 45.552822108   17.610 16.884   16.132 ~ 4 0
54 Cl* Berkeley 39 KR 5 * 07 46 47.6010941496 -04 39 56.256954948   15.286 13.995   12.500 ~ 17 0
55 Cl Berkeley 39 OpC 07 46 48 -04 39.9           ~ 178 1
56 Cl* Berkeley 39 FMP 21769 * 07 46 48.5530785504 -04 39 09.242375328   17.785 16.725   15.582 ~ 6 0
57 Cl* Berkeley 39 FMP 21815 * 07 46 49.1145617736 -04 41 55.686738768   16.698 15.518   14.185 ~ 10 0
58 Cl* Berkeley 39 KUBVI 1544 * 07 46 49.1195653968 -04 40 52.431709044   17.668 17.018   16.218 ~ 5 0
59 Cl* Berkeley 39 KUBVI 1534 * 07 46 49.1426141400 -04 36 24.102938412   18.095 17.402   16.580 ~ 5 0
60 Cl* Berkeley 39 KUBVI 1468 * 07 46 49.8266417400 -04 38 52.406472156   17.907 17.191   16.361 ~ 5 0
61 Cl* Berkeley 39 KUBVI 1470 * 07 46 49.9024571544 -04 41 44.710943388   17.639 16.979   16.226 ~ 5 0
62 Cl* Berkeley 39 KUBVI 1448 * 07 46 50.0832050928 -04 36 41.712997140   17.833 17.098   16.266 ~ 1 0
63 Cl* Berkeley 39 KUBVI 1447 HB* 07 46 50.0902081152 -04 36 00.419486112   15.497 14.322   13.127 ~ 6 0
64 Cl* Berkeley 39 KUBVI 1432 * 07 46 50.3149274280 -04 39 40.329630108   17.933 17.205   16.455 ~ 5 0
65 Cl* Berkeley 39 KUBVI 1422 * 07 46 50.4407180136 -04 37 31.595149020   18.059 17.383   16.528 ~ 5 0
66 Cl* Berkeley 39 FMP 21912 HB* 07 46 50.7590275512 -04 41 28.869910620   15.406 14.166   13.019 ~ 8 0
67 Cl* Berkeley 39 KUBVI 1411 * 07 46 50.8211163240 -04 46 57.894601728   15.353 14.096   12.866 ~ 1 0
68 Cl* Berkeley 39 FMP 21925 * 07 46 51.1422109680 -04 40 29.232107973   16.076 14.783   13.491 ~ 9 0
69 Cl* Berkeley 39 KUBVI 1363 * 07 46 51.2090641848 -04 36 03.565023588   16.618 15.494   14.342 ~ 5 0
70 Cl* Berkeley 39 KUBVI 1357 * 07 46 51.3138840216 -04 38 48.669129528   17.818 17.098   16.265 ~ 4 0
71 Cl* Berkeley 39 KUBVI 1356 * 07 46 51.4191802392 -04 45 09.895947588   16.581 15.403   14.171 ~ 1 0
72 Cl* Berkeley 39 KUBVI 1334 * 07 46 51.7782201552 -04 44 25.874746332   18.049 17.222   16.283 ~ 1 0
73 Cl* Berkeley 39 KUBVI 1310 * 07 46 51.9085365360 -04 33 37.994635080   16.851 15.818   14.672 ~ 4 0
74 Cl* Berkeley 39 KUBVI 1321 * 07 46 51.9212084040 -04 43 13.581460956   17.778 16.757   15.885 ~ 1 0
75 Cl* Berkeley 39 KUBVI 1280 * 07 46 52.2721215120 -04 42 31.660653168   17.958 17.192   16.321 ~ 5 0
76 Cl* Berkeley 39 KR 16 * 07 46 52.49 -04 41 14.6   15.649 14.426   13.187 ~ 8 0
77 Cl* Berkeley 39 KUBVI 1252 * 07 46 52.5105333408 -04 39 23.167731312   17.841 17.121   16.251 ~ 4 0
78 Cl* Berkeley 39 KUBVI 1176 * 07 46 53.7060145296 -04 43 30.641435616   17.993 17.026   16.191 ~ 5 0
79 Cl* Berkeley 39 KUBVI 1139 HB* 07 46 54.1492528272 -04 38 58.224033096   15.489 14.359   13.113 ~ 16 0
80 Cl* Berkeley 39 KUBVI 1125 * 07 46 54.4076987352 -04 41 27.968904420   15.027 13.531   11.931 ~ 4 0
81 Cl* Berkeley 39 KUBVI 1126 * 07 46 54.4190648448 -04 40 57.188439840   17.952 17.220   16.344 ~ 4 0
82 Cl* Berkeley 39 KUBVI 1114 * 07 46 54.5877276552 -04 44 17.423719116   17.157 15.920   14.652 ~ 1 0
83 Cl* Berkeley 39 KUBVI 1098 * 07 46 54.8319714096 -04 43 18.662368152   17.280 16.000   14.578 ~ 1 0
84 Cl* Berkeley 39 KUBVI 1082 * 07 46 55.0690004112 -04 45 25.139610180   17.649 16.872   16.039 ~ 5 0
85 Cl* Berkeley 39 FMP 22154 * 07 46 55.1079625224 -04 39 27.283486176   16.441 15.214   13.938 ~ 5 0
86 Cl* Berkeley 39 FMP 22144 * 07 46 55.2042364632 -04 36 51.200117460   16.946 15.889   14.786 ~ 5 0
87 Cl* Berkeley 39 KUBVI 1058 * 07 46 55.2336532440 -04 40 12.489840588   18.041 17.085   16.115 ~ 5 0
88 Cl* Berkeley 39 KUBVI 1040 * 07 46 55.4395835808 -04 38 05.752999680   18.396 17.646   16.786 ~ 4 0
89 Cl* Berkeley 39 KUBVI 984 HB* 07 46 56.5229139144 -04 43 51.153896208   15.734 14.335   13.132 ~ 6 0
90 Cl* Berkeley 39 KUBVI 954 V* 07 46 56.9391914568 -04 36 13.334458680   16.411 15.318   14.109 ~ 2 0
91 Cl* Berkeley 39 KUBVI 892 * 07 46 58.0160336256 -04 33 55.039228020   15.395 14.107   13.059 ~ 5 0
92 Cl* Berkeley 39 KUBVI 866 * 07 46 58.5586431528 -04 40 59.949366312   17.923 17.215   16.367 ~ 4 0
93 Cl* Berkeley 39 KUBVI 802 HB* 07 46 59.8144846344 -04 41 47.892293232   15.584 14.375   13.085 ~ 6 0
94 Cl* Berkeley 39 KUBVI 773 * 07 47 00.1367293872 -04 33 26.121516264   16.927 15.888   14.836 ~ 5 0
95 Cl* Berkeley 39 KUBVI 761 * 07 47 00.4436392080 -04 36 59.043801132   17.490 16.756   15.934 ~ 1 0
96 Cl* Berkeley 39 KUBVI 730 * 07 47 01.0646946168 -04 39 53.768812356   17.880 16.977   15.974 ~ 5 0
97 Cl* Berkeley 39 KUBVI 727 * 07 47 01.2190435296 -04 42 45.256306140   16.717 15.570   14.412 ~ 4 0
98 Cl* Berkeley 39 KUBVI 699 BS? 07 47 01.6555193640 -04 42 16.581517884   17.395 16.789   16.076 ~ 5 0
99 Cl* Berkeley 39 KUBVI 670 * 07 47 02.2331847384 -04 43 33.224373012   18.372 17.472   16.465 ~ 1 0
100 Cl* Berkeley 39 FMP 22519 * 07 47 02.8624626408 -04 40 58.916964216   17.661 16.880   15.981 ~ 5 0
101 Cl* Berkeley 39 KUBVI 618 * 07 47 03.3304912272 -04 39 43.575148332   17.014 15.810   14.565 ~ 5 0
102 Cl* Berkeley 39 KUBVI 591 HB* 07 47 03.7837620888 -04 39 14.192064936   15.717 14.465   13.265 ~ 6 0
103 Cl* Berkeley 39 FMP 22584 * 07 47 04.9368664512 -04 35 42.428092596   16.634 15.497   14.336 ~ 6 0
104 Cl* Berkeley 39 KUBVI 517 * 07 47 05.4196724592 -04 39 41.769313848   17.629 16.415   15.098 ~ 1 0
105 Cl* Berkeley 39 KUBVI 500 * 07 47 05.8266477312 -04 42 16.020149976   17.571 16.627   15.604 ~ 1 0
106 Cl* Berkeley 39 KUBVI 438 * 07 47 07.1204618400 -04 46 37.385650416   17.330 16.274   15.178 ~ 1 0
107 Cl* Berkeley 39 KUBVI 430 * 07 47 07.2634116960 -04 43 00.413484240   15.556 14.223   12.925 ~ 1 0
108 Cl* Berkeley 39 KUBVI 408 * 07 47 07.8620916384 -04 44 48.549012648   15.706 14.600   13.453 ~ 1 0
109 Cl* Berkeley 39 KUBVI 281 * 07 47 10.7592631728 -04 36 25.885556496   16.110 14.856   13.610 ~ 5 0
110 Cl* Berkeley 39 KUBVI 266 * 07 47 11.4107683344 -04 42 07.043635584   17.715 17.086   16.322 ~ 1 0
111 Cl* Berkeley 39 KUBVI 239 * 07 47 12.0431261376 -04 44 28.539272580   17.563 16.909   16.112 ~ 1 0
112 Cl* Berkeley 39 KUBVI 151 * 07 47 14.2286955768 -04 36 11.744940672   17.813 17.060   16.240 ~ 3 0
113 Cl* Berkeley 39 KUBVI 160 * 07 47 14.3355433752 -04 47 20.311707372   17.341 16.565   15.660 ~ 1 0
114 Cl* Berkeley 39 KUBVI 110 * 07 47 15.2453478048 -04 38 31.304676264   16.914 15.956   14.804 ~ 2 0
115 Cl* Berkeley 39 KUBVI 115 * 07 47 15.2589334896 -04 44 42.277513380   17.564 16.798   15.926 ~ 1 0
116 Cl* Berkeley 39 FMP 22943 * 07 47 15.6395227608 -04 37 28.853071500   18.020 17.195   16.309 ~ 2 0
117 Cl* Berkeley 39 KUBVI 24 * 07 47 17.4337691448 -04 42 34.754112864   15.822 14.613   13.418 ~ 1 0
118 Cl* Berkeley 39 FMP 23040 * 07 47 17.7994111032 -04 44 14.532143460   15.911 14.487   13.190 ~ 2 0
119 C 1235-509 GlC 12 38 40.20 -51 09 01.0           ~ 352 0
120 NAME Galactic Center reg 17 45 39.60213 -29 00 22.0000           ~ 13458 0
121 NGC 6752 GlC 19 10 52.11 -59 59 04.4           ~ 1928 0
122 Cl Terzan 7 GlC 19 17 43.92 -34 39 27.8           ~ 407 0
123 NGC 6791 OpC 19 20 53 +37 46.7   10.52 9.5     ~ 987 0
124 Cl Pal 12 GlC 21 46 38.84 -21 15 09.4     11.89     ~ 500 0

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2023.02.09-11:05:09

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