2008A&A...480...79B


C.D.S. - SIMBAD4 rel 1.7 - 2019.07.20CEST06:19:52

2008A&A...480...79B - Astronomy and Astrophysics, volume 480, 79-90 (2008/3-2)

Old open clusters as key tracers of Galactic chemical evolution. II. Iron and elemental abundances in NGC 2324, NGC 2477, NGC 2660, NGC 3960, and Berkeley 32.

BRAGAGLIA A., SESTITO P., VILLANOVA S., CARRETTA E., RANDICH S. and TOSI M.

Abstract (from CDS):

To constrain the formation and chemical evolution of the Galactic disk, we surveyed open clusters of different ages, metal contents, and distances from the Galactic centre. We employed FLAMES on VLT-UT2 to collect UVES spectra of five to ten giant stars in each of the selected clusters and used them to derive the iron abundance and the detailed chemical composition. Equivalent widths were measured and abundance analysis was performed using the MOOG code and Kurucz model atmospheres on all stars considered as cluster members on the basis of their radial velocity. We derived the atmospheric parameters and the Fe abundance for NGC 2324 and NGC 2477 (average [Fe/H]=-0.17 with rms 0.05dex, and +0.07 with rms 0.03dex, respectively), two clusters never analyzed using high resolution spectra. We also derived the abundances of Mg, Al, Ca, Si, Ti, Cr, Ni, and Ba for these two clusters and for NGC 2660, NGC 3960, and Berkeley 32, whose atmospheric parameters and metallicities were measured in a previous paper. We determined the reddening values for the five clusters, based on the spectroscopic temperatures, literature photometry, and a colour-temperature relation. All clusters show solar-scaled abundances for α- and Fe-peak elements, while [Na/Fe] appears slightly enhanced and [Ba/Fe] significantly enhanced. Our findings were compared to thin-disk stars and other open clusters, and no significant deviation from the standard behavior was found.

Abstract Copyright:

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

VizieR on-line data: <Available at CDS (J/A+A/480/79): object.dat table4.dat ew.dat table13.dat table14.dat>

Nomenclature: Table 2: Cl* NGC 2324 BSV NNNNNN N=8 among (Nos 10360-30957), Cl* NGC 2477 BSV NNNNN N=9 among (Nos 6530-36449).

Simbad objects: 58

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Number of rows : 58

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2019
#notes
1 Cl Berkeley 66 OpC 03 04 04 +58 44.4           ~ 49 0
2 NAME Hyades OpC 04 26 54.00 +15 52 00.0           ~ 2554 0
3 Cl Berkeley 20 OpC 05 32 37.0 +00 11 18           ~ 97 0
4 Cl Berkeley 22 OpC 05 58.4 +07 50           ~ 62 0
5 NGC 2141 OpC 06 02 55 +10 26.8   10.43 9.4     ~ 113 0
6 Cl Berkeley 29 OpC 06 53 04.2 +16 55 39   14.3       ~ 137 0
7 Cl Berkeley 31 OpC 06 57 36 +08 16.0           ~ 93 0
8 Cl* Berkeley 32 DBT 99 *iC 06 57 50.5647284905 +06 26 11.935878151   14.769 13.696   12.477 ~ 10 0
9 Cl* Berkeley 32 RS 269 *iC 06 57 59.8110458203 +06 26 59.893741110 16.261 15.387 14.242   13.028 ~ 11 0
10 Cl* Berkeley 32 KM 27 *iC 06 58 02.2532171993 +06 24 56.655612858 16.388 15.504 14.384   13.177 ~ 12 0
11 Cl* Berkeley 32 DBT 787 *iC 06 58 03.0801445339 +06 26 16.046306422 15.578 14.797 13.722   12.582 ~ 12 0
12 Cl Berkeley 32 OpC 06 58 06 +06 26.0           ~ 105 0
13 Cl* Berkeley 32 RS 1866 *iC 06 58 07.4644983248 +06 29 32.678756611 16.977 16.314 15.306   14.165 ~ 10 0
14 Cl* Berkeley 32 KM 17 *iC 06 58 08.2326638016 +06 24 19.416646981 15.542 14.756 13.685   12.540 ~ 13 0
15 2MASS J06581148+0621163 * 06 58 11.4805249708 +06 21 16.177090755     13.672   12.501 ~ 8 0
16 Cl* Berkeley 32 KM 18 *iC 06 58 13.7543991236 +06 27 54.868346776 15.536 14.768 13.713   12.550 ~ 16 0
17 Cl* Berkeley 32 SBR 940 *iC 06 58 22.8994558447 +06 26 25.286385979   14.793 13.691   12.548 ~ 10 0
18 C 0701-207 OpC 07 03 05.0 -20 49 00           ~ 106 0
19 2MASS J07040031+0058168 RG* 07 04 00.3155299380 +00 58 16.877592538   14.023 12.43 11.96 11.015 ~ 12 0
20 2MASS J07040114+0106040 RG* 07 04 01.1470738170 +01 06 04.008051545   14.347 13.351 12.97 12.216 ~ 13 0
21 2MASS J07040376+0100148 RG* 07 04 03.7646226834 +01 00 14.808131110   14.444 13.425 12.97 12.267 ~ 12 0
22 NGC 2324 OpC 07 04 07 +01 02.7   8.83 8.4     ~ 122 0
23 2MASS J07040821+0105184 SB* 07 04 08.2228257770 +01 05 18.442630613   14.312 13.291   12.144 ~ 11 0
24 2MASS J07041353+0102051 RG* 07 04 13.5452505017 +01 02 05.151456859   14.635 13.615   13.938 ~ 11 0
25 Cl* NGC 2324 MMU 2027 *iC 07 04 14.7615985447 +01 01 06.702708879   14.374 13.332 12.90 12.201 ~ 8 0
26 Cl* NGC 2324 MMU 1992 *iC 07 04 16.1654408781 +01 01 13.461244905   13.731 12.508   11.242 ~ 11 0
27 Cl* NGC 2324 PCA 1-788 *iC 07 04 22.5070069998 +01 06 16.539926797   14.863 13.915   12.814 ~ 3 0
28 NAME Saurer A Cluster OpC 07 20.9 +01 48           ~ 52 0
29 Cl* NGC 2477 HART 7053 *iC 07 51 58.7685169543 -38 31 43.073857998   15.747   14.94 14.19 ~ 1 0
30 2MASS J07520078-3828490 RB? 07 52 00.7884395245 -38 28 49.093880231   13.525 12.282   11.024 ~ 18 0
31 NGC 2477 OpC 07 52 10 -38 31.8   6.64 5.8     ~ 252 0
32 2MASS J07521075-3835161 RB? 07 52 10.7490483098 -38 35 16.216449439   13.549 12.3     ~ 11 0
33 Cl* NGC 2477 KVI 2447 *iC 07 52 25.3176916783 -38 38 38.692931973   14.008 12.771 11.70 11.24 ~ 6 0
34 Cl* NGC 2477 HART 2078 *iC 07 52 35.4914644292 -38 30 20.795749834   15.668 14.958 14.80 14.04 ~ 1 0
35 2MASS J07523652-3837543 RB? 07 52 36.5274405684 -38 37 54.356410939   13.428 12.231   10.995 ~ 12 0
36 Cl* NGC 2477 KVI 1019 RB? 07 52 41.83 -38 32 12.9   13.909 12.714     ~ 9 0
37 UCAC2 15224573 RB? 07 52 45.8751965081 -38 38 10.834894517   13.889 12.650 12.25 11.37 ~ 2 0
38 Cl* NGC 2477 MMU 3206 *iC 07 52 55.0334781732 -38 33 12.559558495   13.623 12.331     ~ 10 0
39 Cl* NGC 2660 SBT 296 RB? 08 42 36.45 -47 12 08.1   15.798 14.552   13.174 ~ 9 0
40 2MASS J08423671-4710373 RB? 08 42 36.7086375359 -47 10 37.295066135   15.401 14.110   12.713 ~ 6 0
41 NGC 2660 OpC 08 42 38 -47 12.0   9.05 8.8     ~ 125 0
42 2MASS J08424172-4711254 RB? 08 42 41.7186111503 -47 11 25.455086575   15.420 14.120   12.704 ~ 9 0
43 2MASS J08424543-4711188 RB? 08 42 45.4331714157 -47 11 18.916236850   15.674 14.368   12.938 ~ 9 0
44 2MASS J08425066-4713038 RB? 08 42 50.6658414700 -47 13 03.817372363   15.602 14.315   12.909 ~ 9 0
45 NGC 2682 OpC 08 51 18 +11 48.0   7.6 6.9     ~ 1964 0
46 Cl* NGC 3960 PMS 310758 ? 11 50 26.750 -55 40 28.20   14.084 12.945   11.697 ~ 8 0
47 Cl* NGC 3960 PMS 310756 ? 11 50 28.184 -55 41 36.66   14.366 13.194   11.907 ~ 8 0
48 NGC 3960 OpC 11 50 33 -55 40.4   9.07 8.3     ~ 114 0
49 Cl* NGC 3960 PMS 310755 ? 11 50 33.149 -55 42 36.13   14.799 13.514   12.088 ~ 4 0
50 Cl* NGC 3960 PMS 310757 ? 11 50 36.050 -55 42 05.40   14.323 13.062   11.679 ~ 5 0
51 Cl* NGC 3960 PMS 310760 ? 11 50 37.621 -55 40 15.19   14.224 13.060   11.758 ~ 5 0
52 Cl* NGC 3960 PMS 310761 ? 11 50 38.100 -55 39 44.50   14.309 13.100   11.787 ~ 8 0
53 Cl Collinder 261 OpC 12 38 11.5 -68 22 01     10.7     ~ 152 0
54 NGC 6253 OpC 16 59 05 -52 42.0     10.2     ~ 140 0
55 IC 4651 OpC 17 24 49 -49 56.0   7.76 6.9     ~ 305 0
56 NAME Gal Center reg 17 45 40.04 -29 00 28.1           ~ 10856 0
57 NGC 6791 OpC 19 20 53 +37 46.3   10.52 9.5     ~ 829 0
58 NGC 6819 OpC 19 41 18 +40 11.2   8.21 7.3     ~ 428 0

    Equat.    Gal    SGal    Ecl

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2019.07.20-06:19:52

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