2017MNRAS.469.1330A

Query : 2017MNRAS.469.1330A

2017MNRAS.469.1330A - Mon. Not. R. Astron. Soc., 469, 1330-1353 (2017/August-1)

NGC 6067: a young and massive open cluster with high metallicity.

ALONSO-SANTIAGO J., NEGUERUELA I., MARCO A., TABERNERO H.M., GONZALEZ-FERNANDEZ C. and CASTRO N.

Abstract (from CDS):

NGC 6067 is a young open cluster hosting the largest population of evolved stars among known Milky Way clusters in the 50-150 Ma age range. It thus represents the best laboratory in our Galaxy to constrain the evolutionary tracks of 5-7 M☉ stars. We have used high-resolution spectra of a large sample of bright cluster members (45), combined with archival photometry, to obtain accurate parameters for the cluster as well as stellar atmospheric parameters. We derive a distance of 1.78 ± 0.12 kpc, an age of 90 ± 20 Ma and a tidal radius of 14.8+6.8–3.2 arcmin. We estimate an initial mass above 5700 M☉, for a present-day evolved population of two Cepheids, two A supergiants and 12 red giants with masses ≃6 M☉. We also determine chemical abundances of Li, O, Na, Mg, Si, Ca, Ti, Ni, Rb, Y and Ba for the red clump stars. We find a supersolar metallicity, [Fe/H] = +0.19 ± 0.05, and a homogeneous chemical composition, consistent with the Galactic metallicity gradient. The presence of a Li-rich red giant, star 276 with A(Li) = 2.41, is also detected. An overabundance of Ba is found, supporting the enhanced s-process. The ratio of yellow to red giants is much smaller than 1, in agreement with models with moderate overshooting, but the properties of the cluster Cepheids do not seem consistent with current Padova models for supersolar metallicity.

Abstract Copyright: © 2017 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): stars: abundances - stars: fundamental parameters - Hertzsprung-Russell and colour-magnitude diagrams - stars: late-type - stars: variables: Cepheids - open clusters and associations: individual: NGC 6067 - open clusters and associations: individual: NGC 6067

VizieR on-line data: <Available at CDS (J/MNRAS/469/1330): table1.dat table5.dat table6.dat table9.dat tablea1.dat tablea2.dat>

Simbad objects: 134

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Number of rows : 134
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 V* V379 Cas cC* 00 26 35.9584556448 +60 47 53.433364776   10.18 9.16     F6 63 0
2 V* DL Cas cC* 00 29 58.5888773064 +60 12 43.065292140 10.66 9.88 8.63   7.582 G1Ib-IIHdel-1 349 0
3 NGC 129 OpC 00 30 25.8 +60 12 44   7.33 6.5     ~ 216 0
4 NGC 225 OpC 00 42 34.7 +61 47 30   7.43 7.0     ~ 110 0
5 NGC 436 OpC 01 16 00.1 +58 49 15   8.01 8.8     ~ 80 0
6 NGC 663 OpC 01 46 22.2 +61 12 53   7.78 7.1     ~ 269 0
7 Cl Trumpler 2 OpC 02 36 14.9 +55 54 32           ~ 124 0
8 NGC 1193 OpC 03 05 56.4 +44 22 58     12.6     ~ 97 0
9 Cl Trumpler 3 OpC 03 12 00.3 +63 12 35     7.0     ~ 57 0
10 Cl Melotte 20 MGr 03 26 50.6 +48 51 48           ~ 928 0
11 NAME Per Arm PoG 03 30 +45.0           ~ 1672 0
12 Cl Melotte 22 OpC 03 46 38.0 +24 10 41           ~ 3679 0
13 NGC 1647 OpC 04 46 00.4 +19 05 06   6.82 6.4     ~ 189 0
14 NGC 1778 OpC 05 08 07.9 +37 01 01   8.20 7.7     ~ 99 0
15 NGC 1850 Cl* 05 08 50.190 -68 45 35.65   8.84 8.96     ~ 298 1
16 NGC 1866 GlC 05 13 38.920 -65 27 52.75           ~ 437 0
17 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 19090 0
18 NGC 2136 Cl* 05 53 01.800 -69 29 24.24   10.99 10.70     ~ 121 1
19 NGC 2157 Cl* 05 57 35.430 -69 11 48.67   10.35 10.16     ~ 120 0
20 NGC 2168 OpC 06 09 07.5 +24 20 15           ~ 604 0
21 NGC 2186 OpC 06 12 06.8 +05 27 07   9.20 8.7     ~ 62 0
22 NGC 2232 OpC 06 27 45.6 -04 44 26           ~ 212 0
23 V* CV Mon cC* 06 37 04.8449178072 +03 03 50.274557532   11.32 9.90   8.631 ~ 254 0
24 Cl VDB 1 OpC 06 37 06.0 +03 04 31           ~ 68 0
25 NGC 2323 OpC 07 02 47.3 -08 22 07           ~ 212 0
26 NGC 2345 OpC 07 08 21.4 -13 11 44   8.58 7.7     ~ 92 0
27 NGC 2354 OpC 07 13 59.2 -25 43 40   7.28 6.5     ~ 111 0
28 NGC 2422 OpC 07 36 35.8 -14 30 15           ~ 275 0
29 Cl Trumpler 9 OpC 07 55 39.8 -25 53 20   8.96 8.7     ~ 53 0
30 NGC 2516 OpC 07 58 00.5 -60 46 36           ~ 793 0
31 NGC 2546 OpC 08 12 39.8 -37 39 34   6.46 6.3     ~ 125 0
32 NGC 2669 OpC 08 46 29.5 -52 55 05   6.35 6.1     ~ 81 0
33 IC 2488 OpC 09 27 28.6 -57 00 45           ~ 75 0
34 NGC 2972 OpC 09 40 14.1 -50 19 36   10.72 9.9     ~ 65 0
35 NGC 3033 OpC 09 48 33.0 -56 24 35   9.24 8.8     ~ 59 0
36 NGC 3114 OpC 10 01 55.0 -60 02 16   4.47 4.2     ~ 213 0
37 NGC 3228 OpC 10 21 34.1 -51 45 39           ~ 98 0
38 NGC 3247 OpC 10 25 52 -57 55.6   7.99 7.6     ~ 39 0
39 Cl Melotte 101 OpC 10 42 08.3 -65 06 35           ~ 57 0
40 Cl Collinder 258 OpC 12 27 10.8 -60 46 13   7.39 7.1     ~ 76 1
41 NGC 4609 OpC 12 42 19.2 -62 59 36   7.32 6.9     ~ 96 0
42 NGC 4815 OpC 12 58 00.8 -64 57 36   9.61 8.6     ~ 110 0
43 NGC 5138 OpC 13 27 19.3 -59 01 23           ~ 65 0
44 NGC 5168 OpC 13 31 08.7 -60 56 45   9.55 9.1     ~ 60 0
45 NGC 5617 OpC 14 29 46.5 -60 43 02           ~ 108 0
46 V* V Cen cC* 14 32 33.0833481288 -56 53 15.774129600 8.44 7.84 6.93   5.798 F5Ib/II 288 0
47 NGC 5662 OpC 14 34 55.5 -56 40 41   6.18 5.5     ~ 136 0
48 NGC 5749 OpC 14 48 46.6 -54 30 43     8.8     ~ 69 0
49 V* QZ Nor cC* 16 11 20.4664528848 -54 21 14.824796688 10.08 9.53 8.71 8.66   G1Iab 154 0
50 HD 145139 * 16 12 04.6342321560 -54 17 05.027256672   10.09 9.88     B9.5III 9 0
51 HD 145175 * 16 12 19.8798740208 -54 14 04.555371372   10.090 8.643 8.97   K0III 13 0
52 CPD-53 7308 * 16 12 39.8069705736 -54 17 41.150979924   11.606 9.780 9.82   K2II 18 0
53 CPD-53 7317 ** 16 12 44.92048 -54 19 06.9151           B7III/IV 11 0
54 CPD-53 7324 * 16 12 47.3612739768 -54 11 00.468256236   11.343 10.005 9.91   G8Ib/II 22 0
55 CPD-53 7325 * 16 12 48.7847612640 -54 12 20.239162236   11.28 10.77 11.34   ~ 11 0
56 CPD-53 7335 * 16 12 52.3664924592 -54 11 44.986930620       11.85   ~ 6 0
57 CPD-53 7334 * 16 12 52.4156102616 -54 10 51.626650728   11.09 10.90     B7IV 10 0
58 CPD-53 7339 * 16 12 54.2675385912 -54 09 38.914645500   10.958 10.564 11.10   B6IV 4 0
59 CPD-53 7343 * 16 12 56.2923799560 -54 09 35.989864632   10.59 10.43     B6IV 11 0
60 CD-53 6474 s*r 16 12 56.9036999088 -54 13 13.513528128   10.595 8.753 9.15   K2Ib 39 0
61 CPD-53 7347 * 16 12 57.9112505136 -54 17 20.253867108   10.47 10.37     B4V 8 0
62 HD 145304 BS* 16 12 58.5749457840 -54 03 59.812807680 8.36 8.952 8.887 9.47   B2III 29 0
63 CD-53 6479 BS* 16 13 00.2378460768 -54 11 37.142652768 8.7 9.17 9.04 9.58   BN2.5III 38 0
64 CPD-53 7360 EB* 16 13 02.4931751280 -54 13 11.914744008   10.65 10.25 10.64   B8III+B8V 5 0
65 HD 145324 * 16 13 02.7923535864 -54 21 36.993920616 8.11 7.606 7.28 8.16   A5Ib/II 31 0
66 CPD-53 7361 * 16 13 02.8180914696 -54 10 50.290758408   11.426 10.943 11.11   B8IV_sh 11 0
67 CPD-53 7363 * 16 13 03.1474772016 -54 11 55.122789480       11.36   B8III 3 0
68 CPD-53 7362 * 16 13 03.2484956064 -54 13 57.896848740   11.50 11.50 11.32   B7IV 5 0
69 CPD-53 7364 s*r 16 13 04.0246986000 -54 12 18.690771204   10.936 9.171 9.31   K4Ib 35 0
70 CPD-53 7366A * 16 13 04.6488201336 -54 14 27.169375632   11.78 9.74 9.61   K4II 16 0
71 CPD-53 7366 ** 16 13 04.70280 -54 14 27.9600           K4II+K2II 16 0
72 CPD-53 7366B * 16 13 04.8258052296 -54 14 31.086267756       9.85   K2II 2 0
73 CPD-53 7370 * 16 13 06.5484178176 -54 14 05.597163204   11.315 10.953 11.08   B9IIISi 5 0
74 CPD-53 7372 * 16 13 07.8615614472 -54 14 58.223500620   11.000 11.135 10.96   B8III 14 0
75 NGC 6067 OpC 16 13 10.2 -54 13 48           ~ 239 0
76 CPD-53 7383 * 16 13 11.8413581136 -54 12 14.866787988   11.22 10.92 10.95   B7IV 5 0
77 CPD-53 7385 * 16 13 12.5267716008 -54 08 44.802641076   11.06 10.73     B7IV 8 0
78 CPD-53 7384 * 16 13 12.8462761224 -54 17 23.963293788   10.299 10.087 10.21   B7IIIe 17 0
79 CPD-53 7392 * 16 13 14.0462591208 -54 11 49.121807928   11.58 11.38     B9IIISi 10 0
80 CPD-53 7388 * 16 13 14.3357035176 -54 17 10.326740244   10.63 10.52 10.67   B7III/IV 14 0
81 CPD-53 7393 * 16 13 14.5589855688 -54 11 20.645291796   11.32 10.06     K0Ib/II 17 0
82 CPD-53 7390 Em* 16 13 14.7446127864 -54 16 20.279867196   10.52 10.37 10.73   B5_sh 6 0
83 CPD-53 7395 * 16 13 14.9267735592 -54 08 50.368543944       11.58   B7V 8 0
84 CPD-53 7397 * 16 13 16.6640580816 -54 16 17.248943460   11.13 10.85     B8IV(e) 8 0
85 CPD-53 7398 * 16 13 16.6772102040 -54 15 11.466738468   11.32 11.27     B7IV 10 0
86 V* V340 Nor cC* 16 13 17.3997630552 -54 14 05.586545400   9.61 8.47 8.83   G2Iab 175 1
87 CPD-53 7402 * 16 13 18.0584914824 -54 10 04.051127388   10.353 10.288 10.34   B7III+B8? 10 0
88 CPD-54 7404 * 16 13 18.2208978048 -54 12 42.017334156       11.06   B6Ve 8 0
89 NGC 6067 298 * 16 13 18.4716565752 -54 14 04.065973152       9.41   A5II 28 0
90 CD-53 6487 * 16 13 21.0803980896 -54 09 54.680037768   11.220 9.937 9.85   G8II 29 0
91 CPD-53 7419 * 16 13 23.5987260192 -54 13 42.723534396   11.431 9.899 9.85   K3II 27 0
92 Cl* NGC 6067 PCB 351 * 16 13 23.8981657368 -54 13 54.657560532   10.69 10.20     A3V 6 0
93 CPD-54 7244 s*r 16 13 24.7216028400 -54 20 05.694263412   11.62 9.92     K0Ib 21 0
94 CPD-53 7426 * 16 13 26.5978612680 -54 14 01.378282020   11.01 11.07 10.78   B8III 11 0
95 HD 145415 ** 16 13 35.670936 -54 07 36.44616       9.21   B3 13 0
96 CPD-53 7449 * 16 13 42.0544062192 -54 12 26.404733592   11.65 11.09     B6V 8 0
97 CPD-53 7454 * 16 13 43.9982852688 -54 16 54.336679392   11.404 10.122 10.01   G8II 20 0
98 CPD-53 7458 * 16 13 46.1180733960 -54 14 50.334608040   10.670 10.331 10.39   B8IIIe 10 0
99 CPD-53 7456 * 16 13 47.5472649936 -54 10 37.642584900   11.37 10.77     B7IV 7 0
100 CPD-53 7467 * 16 13 54.9393588360 -54 18 41.392315548   10.72 10.72     B8IIIp 9 0
101 V* S Nor cC* 16 18 51.8316855000 -57 53 59.256000852 8.15 7.49 6.49   5.427 F8/G0Ib 396 1
102 NGC 6087 OpC 16 18 55.7 -57 53 32           ~ 198 0
103 NGC 6124 OpC 16 25 18.6 -40 39 45   6.70 5.8     ~ 91 0
104 NAME Norma Cloud Cld 16 34 -45.0           ~ 32 1
105 NGC 6192 OpC 16 40 18.7 -43 21 16           ~ 99 0
106 NGC 6405 OpC 17 40 14.5 -32 14 16           ~ 235 0
107 NGC 6416 OpC 17 44 06.6 -32 21 21           ~ 70 0
108 NGC 6520 OpC 18 03 25.4 -27 53 09     7.6     ~ 72 0
109 NGC 6546 OpC 18 07 22 -23 17.8   8.65 8.0     ~ 44 0
110 IC 4725 OpC 18 31 47.5 -19 07 37           ~ 239 0
111 V* U Sgr cC* 18 31 53.3323107600 -19 07 30.261459540 8.50 7.81 6.68   5.413 G1Ib 491 0
112 NGC 6649 OpC 18 33 26.2 -10 23 54   10.35 8.9     ~ 154 0
113 V* V367 Sct cC* 18 33 35.2353033192 -10 25 38.126250552   13.34 11.580     F7Ib 187 0
114 NGC 6664 OpC 18 36 32.4 -08 11 23   8.81 7.8     ~ 135 0
115 V* EV Sct cC* 18 36 39.6017483712 -08 11 05.361288684   10.99 9.90     F8Ib 267 0
116 Cl Dolidze 34 OpC 18 41 54 -04 16.0           ~ 17 0
117 V* RU Sct cC* 18 41 56.3818572048 -04 06 38.376404820   10.17 8.82     G5 216 0
118 V* TY Sct cC* 18 42 07.9137911472 -04 17 36.534635808   13.07 11.00   8.829 F8 115 0
119 V* CN Sct cC* 18 42 30.4903281960 -04 19 50.351682900   14.58       ~ 58 0
120 Cl Trumpler 35 OpC 18 42 57.9 -04 13 21   10.44 9.2     ~ 79 0
121 M 26 OpC 18 45 16.8 -09 23 14   8.0 8.87     ~ 112 0
122 NGC 6705 OpC 18 51 03.7 -06 16 18   6.32 5.8     ~ 442 0
123 NGC 6709 OpC 18 51 17.1 +10 20 15   7.18 6.7     ~ 145 0
124 [MCM2005b] 13 OpC 18 53 53 +00 37.7           ~ 9 0
125 NGC 6755 OpC 19 07 44.5 +04 13 46   8.60 7.5     ~ 91 0
126 Triton 20 * 19 16 36.7430090976 -21 31 09.603801876           ~ 2 0
127 NGC 7031 OpC 21 07 12.9 +50 52 07   10.01 9.1     ~ 65 1
128 NGC 7063 OpC 21 24 30.2 +36 29 45   7.32 7.0     ~ 99 0
129 NGC 7419 OpC 22 54 19.0 +60 48 50     13.0     ~ 113 0
130 M 52 OpC 23 24 47.2 +61 35 32           ~ 200 0
131 V* CE Cas ** 23 58 09.313 +61 12 49.26     10.63     F9Ib+F8Ib 135 0
132 V* CF Cas cC* 23 58 17.9760671064 +61 13 15.821693832   12.72 10.80   9.700 F8Ibv 256 0
133 NGC 7790 OpC 23 58 27.6 +61 12 33   9.18 8.5     ~ 286 0
134 NAME Scutum Spiral Arm PoG ~ ~           ~ 393 0

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