2011A&A...535A..30C


Query : 2011A&A...535A..30C

2011A&A...535A..30C - Astronomy and Astrophysics, volume 535A, 30-30 (2011/11-1)

Chemical abundance analysis of the open clusters Berkeley 32, NGC 752, Hyades, and Praesepe.

CARRERA R. and PANCINO E.

Abstract (from CDS):

Open clusters are ideal test particles for studying the chemical evolution of the Galactic disc. However, the number and accuracy of existing high-resolution abundance determinations, not only of [Fe/H], but also of other key elements, remains largely insufficient. We attempt to increase the number of Galactic open clusters that have high quality abundance determinations, and to gather all the literature determinations published so far. Using high-resolution (R∼30000), high-quality (S/N≥60 per pixel), we obtained spectra for twelve stars in four open clusters with the fibre spectrograph FOCES, at the 2.2 Calar Alto Telescope in Spain. We employ a classical equivalent-width analysis to obtain accurate abundances of sixteen elements: Al, Ba, Ca, Co, Cr, Fe, La, Mg, Na, Nd, Ni, Sc, Si, Ti, V, and Y. We derived oxygen abundances by means of spectral synthesis of the 6300Å forbidden line. We provide the first determination of abundance ratios other than Fe for NGC 752 giants, and ratios in agreement with the literature for the Hyades, Praesepe, and Be 32. We use a compilation of literature data to study Galactic trends of [Fe/H] and [α/Fe] with Galactocentric radius, age, and height above the Galactic plane. We find no significant trends, but some indication for a flattening of [Fe/H] at large Rgc, and for younger ages in the inner disc. We also detect a possible decrease in [Fe/H] with |z| in the outer disc, and a weak increase in [α/Fe] with Rgc.

Abstract Copyright:

Journal keyword(s): Galaxy: disk - open clusters and associations: individual: NGC 752 - open clusters and associations: individual: Hyades - open clusters and associations: individual: Berkeley 32 - open clusters and associations: individual: Praesepe (M 44) - stars: abundances

VizieR on-line data: <Available at CDS (J/A+A/535/A30): table1.dat table5.dat>

Simbad objects: 106

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Number of rows : 106
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
#notes
1 Cl Blanco 1 OpC 00 03 25 -29 57.5           ~ 282 0
2 NGC 188 OpC 00 47 12 +85 14.6           ~ 873 0
3 BD+37 407 * 01 55 12.6246242616 +37 50 14.552504052   10.31 9.39     G5III 56 0
4 NGC 752 OpC 01 56 54 +37 47.6           ~ 594 0
5 BD+36 368 SB* 01 57 37.5961724736 +37 39 37.908040644   9.90 8.85     K1III 41 1
6 BD+37 432 * 01 57 38.9498019528 +37 46 12.414071532   9.98 9.00     G9III 56 0
7 BD+37 448 * 01 58 52.9027843464 +37 48 57.229263828   10.07 9.04     G9III 76 0
8 NGC 1039 OpC 02 42 07 +42 43.3           ~ 400 0
9 Cl Berkeley 66 OpC 03 04 07 +58 43.9           ~ 60 0
10 NGC 1193 OpC 03 05 57 +44 23.0     12.6     ~ 78 0
11 NGC 1245 OpC 03 14 46 +47 14.1   9.16 8.4     ~ 138 0
12 Cl Melotte 20 OpC 03 26 28 +48 58.5           ~ 802 0
13 Cl Melotte 22 OpC 03 46 24 +24 06.8           ~ 3226 0
14 * gam Tau ** 04 19 47.6038491 +15 37 39.515422 5.46 4.64 3.65 4.83   G9.5IIIabCN0.5 531 0
15 * del Tau SB* 04 22 56.0951595936 +17 32 33.049802364 5.56 4.74 3.76 5.56   G9.5IIICN0.5 509 0
16 * eps Tau ** 04 28 37.0002551195 +19 10 49.563140930 5.42 4.54 3.53     G9.5IIICN0.5 569 1
17 Cl Melotte 25 OpC 04 29 47 +16 56.9           ~ 2883 0
18 NAME Taurus Complex SFR 04 41.0 +25 52           ~ 4009 0
19 NGC 1817 OpC 05 12 33 +16 41.8           ~ 164 0
20 NGC 1901 OpC 05 17 58 -68 20.5           ~ 86 0
21 Cl Berkeley 17 OpC 05 20 31 +30 34.4           ~ 158 0
22 NGC 1883 OpC 05 25 55 +46 29.6     12.0     ~ 40 0
23 Cl Berkeley 20 OpC 05 32 36 +00 11.1           ~ 109 0
24 NAME Gal Anticenter reg 05 46 +28.9           ~ 826 0
25 Cl Berkeley 21 OpC 05 51 43 +21 48.7   12.26 11.1     ~ 105 0
26 NGC 2112 OpC 05 53 48 +00 24.2     9.1     ~ 78 0
27 Cl Berkeley 22 OpC 05 58 28 +07 45.8           ~ 73 0
28 NGC 2141 OpC 06 02 56 +10 27.1   10.43 9.4     ~ 128 0
29 NGC 2158 OpC 06 07 27 +24 05.9           ~ 272 0
30 NGC 2194 OpC 06 13 46 +12 48.8   9.03 8.5     ~ 74 1
31 NGC 2204 OpC 06 15 32 -18 40.2   9.35 8.6     ~ 140 0
32 Cl Berkeley 73 OpC 06 22 05 -06 19.3           ~ 41 0
33 NGC 2232 OpC 06 27 33 -04 44.9           ~ 158 0
34 NGC 2243 OpC 06 29 35 -31 16.9   10.12 9.4     ~ 247 0
35 NGC 2264 OpC 06 40 52 +09 52.6           ~ 1703 0
36 Cl Berkeley 25 OpC 06 41 16 -16 29.2           ~ 50 0
37 Cl Ruprecht 4 OpC 06 49 00 -10 31.4           ~ 34 0
38 Cl Berkeley 75 OpC 06 49 00 -23 59.9           ~ 51 0
39 Cl Berkeley 29 OpC 06 53 04.2 +16 55 39   14.3       ~ 159 0
40 Cl Collinder 121 OpC 06 56 20 -24 43.8   3.02 2.6     ~ 145 0
41 Cl Berkeley 31 OpC 06 57 37 +08 17.1           ~ 112 0
42 Cl Berkeley 33 OpC 06 57 49 -13 13.6           ~ 76 0
43 Cl* Berkeley 32 RS 1948 * 06 58 04.2092380008 +06 27 17.182996092 15.335 14.504 13.392   12.203 ~ 12 0
44 Cl Berkeley 32 OpC 06 58 07 +06 26.0           ~ 126 0
45 Cl* Berkeley 32 KM 17 * 06 58 08.2327053216 +06 24 19.416522240 15.542 14.756 13.685   12.540 ~ 15 0
46 Cl Haffner 2 OpC 07 03 06 -20 49.2           ~ 120 0
47 NGC 2324 OpC 07 04 08 +01 02.8   8.83 8.4     ~ 141 0
48 NGC 2355 OpC 07 16 59 +13 46.3     9.7     ~ 85 0
49 NGC 2360 OpC 07 17 46 -15 37.9           ~ 180 0
50 NAME Saurer A Cluster OpC 07 20.9 +01 48           ~ 64 0
51 Cl Melotte 66 OpC 07 26 18 -47 41.1   8.73 7.8     ~ 187 0
52 NGC 2423 OpC 07 37 12 -13 51.8           ~ 135 0
53 Cl Melotte 71 OpC 07 37 32 -12 03.9   7.44 7.1     ~ 112 0
54 NGC 2425 OpC 07 38 18 -14 53.1           ~ 38 0
55 NGC 2420 OpC 07 38 24 +21 34.5   9.0 8.3     ~ 445 0
56 NGC 2447 OpC 07 44 34 -23 51.2           ~ 133 1
57 Cl Berkeley 39 OpC 07 46 48 -04 39.9           ~ 170 1
58 NGC 2477 OpC 07 52 11 -38 32.2   6.64 5.8     ~ 270 0
59 NGC 2516 OpC 07 58 06 -60 48.0           ~ 656 0
60 NGC 2506 OpC 08 00 02 -10 46.4   8.28 7.6     ~ 249 0
61 NGC 2539 OpC 08 10 38 -12 50.0   7.05 6.5     ~ 129 0
62 HD 73598 ** 08 39 50.7154795152 +19 32 26.919638988   7.53 6.60     G8III-IIIb 111 0
63 * 39 Cnc * 08 40 06.4182853944 +20 00 28.034963316 8.20 7.37 6.39 5.67 5.20 G8+III-IIIb 183 0
64 NGC 2632 OpC 08 40 13 +19 37.3           ~ 1418 0
65 HD 73710 * 08 40 22.0864518288 +19 40 11.771283936 8.290 7.410 6.390 5.70 5.21 G9III-IIIb 169 0
66 IC 2391 OpC 08 41 10 -52 59.5           ~ 778 0
67 NGC 2660 OpC 08 42 40 -47 12.1   9.05 8.8     ~ 137 0
68 NGC 2682 OpC 08 51 23 +11 48.8           ~ 2202 0
69 NGC 3114 OpC 10 02 13 -60 02.5   4.47 4.2     ~ 181 0
70 * alf Leo PM* 10 08 22.31099 +11 58 01.9516 0.88 1.24 1.40 1.37 1.47 B8IVn 831 0
71 IC 2581 OpC 10 27 28 -57 37.6   4.79 4.3     ~ 123 0
72 IC 2602 OpC 10 42 27 -64 25.6           ~ 625 0
73 NGC 3532 OpC 11 05 40 -58 42.4           ~ 307 0
74 IC 2714 OpC 11 17 30 -62 43.1     8.2     ~ 84 0
75 NGC 3680 OpC 11 25 34 -43 14.4   8.40 7.6     ~ 302 0
76 NGC 3960 OpC 11 50 35 -55 40.7   9.07 8.3     ~ 124 0
77 Cl Melotte 111 OpC 12 24 03 +25 39.1           ~ 444 0
78 NGC 4349 OpC 12 24 12 -61 52.0   8.01 7.4     ~ 100 0
79 Cl Collinder 261 OpC 12 38 05 -68 22.6     10.7     ~ 175 0
80 Cl Trumpler 20 OpC 12 39 32 -60 38.2           ~ 94 0
81 NGC 5460 OpC 14 07 23 -48 17.1   5.85 5.6     ~ 88 0
82 NGC 5822 OpC 15 04 12 -54 22.0           ~ 187 0
83 NGC 6067 OpC 16 13 12 -54 13.6           ~ 194 0
84 NGC 6087 OpC 16 18 53 -57 55.0   5.85 5.4     ~ 167 0
85 NGC 6134 OpC 16 27 49 -49 09.7   7.89 7.2     ~ 139 0
86 NGC 6192 OpC 16 40 18 -43 21.3           ~ 77 0
87 NGC 6253 OpC 16 59 07 -52 42.7     10.2     ~ 168 0
88 NGC 6281 OpC 17 04 43 -37 56.9           ~ 117 0
89 IC 4651 OpC 17 24 51 -49 55.0           ~ 332 0
90 NGC 6404 OpC 17 39 40 -33 13.4     10.6     ~ 38 0
91 IC 4665 OpC 17 46 13 +05 36.9           ~ 340 0
92 NGC 6475 OpC 17 53 47 -34 50.5           ~ 357 0
93 NGC 6583 OpC 18 15 51 -22 08.6     10.0     ~ 57 0
94 NGC 6633 OpC 18 27 31.2 +06 34 12           ~ 357 0
95 IC 4725 OpC 18 31 45 -19 06.8           ~ 204 0
96 IC 4756 OpC 18 38 31.2 +05 29 24           ~ 217 0
97 NGC 6705 OpC 18 51 04 -06 16.3   6.32 5.8     ~ 390 0
98 NAME SDG G 18 55 03.1 -30 28 42   4.5 3.6     ~ 1986 2
99 NGC 6791 OpC 19 20 53 +37 46.7   10.52 9.5     ~ 971 0
100 NGC 6819 OpC 19 41 18 +40 11.4   8.21 7.3     ~ 555 0
101 NAME NGC 6882/5 OpC 20 11.9 +26 35           ~ 5 0
102 NGC 6939 OpC 20 31 40 +60 39.2   8.85 7.8     ~ 147 0
103 NGC 7142 OpC 21 45 10.0 +65 46 18   10.36 9.3     ~ 129 0
104 NGC 7160 OpC 21 53 48 +62 35.3   6.34 6.1     ~ 222 0
105 * omi And Be* 23 01 55.2645930 +42 19 33.533383 3.00 3.53 3.62 3.61 3.69 B6IV/V_sh 419 0
106 NGC 7789 OpC 23 57 20 +56 43.6   7.68 6.7     ~ 488 0

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2022.09.24-18:13:22

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