2008A&A...489..403P


C.D.S. - SIMBAD4 rel 1.7 - 2020.03.30CEST16:37:52

2008A&A...489..403P - Astronomy and Astrophysics, volume 489, 403-412 (2008/10-1)

Abundances of four open clusters from solar stars.

PACE G., PASQUINI L. and FRANCOIS P.

Abstract (from CDS):

We present the abundance measurements of several elements (Fe, Ca, Na, Ni, Ti, Al, Cr, Si) for 20 solar-type stars belonging to four Galactic open clusters: NGC 3680, IC 4651, Praesepe, and M 67. Oxygen abundances were in addition measured for most stars in each cluster apart from IC 4651. For NGC 3680, accurate abundance determinations using high-resolution spectra covering a large spectral domain are computed for the first time. We used UVES high-resolution, high signal-to-noise (S/N) ratio spectra and performed a differential analysis with respect to the sun, by measuring equivalent widths and assuming LTE. The most surprising result is a measurement of significant supersolar metallicity for Praesepe ([Fe/H]=0.27±0.10). As for the other clusters, we confirm a supersolar metallicity for IC 4651 ([Fe/H]=0.12±0.05), a solar metallicity for M 67 ([Fe/H]=0.03±0.04) and a slight subsolar metallicity for NGC 3680 ([Fe/H]=-0.04±0.03). We find that the abundance ratios of almost all elements are solar, with the notable exception of oxygen in NGC 3680 and Praesepe, supersolar in the former cluster ([O/Fe]=0.2±0.05) and as low as [O/Fe]=-0.4±0.1 in the latter. Observations of several objects per cluster is required to obtain robust results, especially for those elements with a limited number of suitable lines.

Abstract Copyright:

Journal keyword(s): stars: abundances - Galaxy: open clusters and associations: individual: NGC 3680 - Galaxy: open clusters ans associations: individual: IC4651 - Galaxy: open clusters and associations : Praesepe - Galaxy: associations: open clusters and individual: M67

VizieR on-line data: <Available at CDS (J/A+A/489/403): linels.dat>

Status at CDS:  

Simbad objects: 53

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Number of rows : 53

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 Cl Blanco 1 OpC 00 04 07 -29 50.0           ~ 230 0
2 HD 1087 PM* 00 15 03.2780980265 -27 30 08.939179400   10.13 9.16     K1IV 8 0
3 NGC 188 OpC 00 48 26 +85 15.3           ~ 806 0
4 Cl Berkeley 66 OpC 03 04 04 +58 44.4           ~ 52 0
5 Cl Melotte 20 OpC 03 26 42 +48 48.0           ~ 748 0
6 Cl Melotte 22 OpC 03 47 00 +24 07.0           ~ 2946 0
7 Cl Melotte 25 OpC 04 26 54.00 +15 52 00.0           ~ 2623 0
8 Cl Berkeley 17 OpC 05 20 37 +30 35.4           ~ 132 0
9 Cl Berkeley 20 OpC 05 32 37.0 +00 11 18           ~ 98 0
10 Cl Berkeley 22 OpC 05 58.4 +07 50           ~ 63 0
11 NGC 2141 OpC 06 02 55 +10 26.8   10.43 9.4     ~ 115 0
12 NGC 2168 OpC 06 08 54 +24 20.0           ~ 456 0
13 Cl Berkeley 29 OpC 06 53 04.2 +16 55 39   14.3       ~ 137 0
14 Cl Berkeley 31 OpC 06 57 36 +08 16.0           ~ 94 0
15 Cl Berkeley 32 OpC 06 58 06 +06 26.0           ~ 106 0
16 NGC 2324 OpC 07 04 07 +01 02.7   8.83 8.4     ~ 124 0
17 NAME Saurer A Cluster OpC 07 20.9 +01 48           ~ 53 0
18 NGC 2477 OpC 07 52 10 -38 31.8   6.64 5.8     ~ 256 0
19 NGC 2506 OpC 08 00 01 -10 46.2   8.28 7.6     ~ 219 0
20 TYC 1395-1758-1 Ro* 08 37 46.6102814233 +19 26 18.049036568   11.243 10.635     F9V 38 0
21 K2-100 Ro* 08 38 24.3004849747 +20 06 21.828303951   11.085 10.521     G0V 54 0
22 TYC 1395-1992-1 Ro* 08 39 45.7491015486 +19 22 01.146480509   11.257 10.640     G0 53 0
23 NGC 2632 OpC 08 40 24 +19 40.0           ~ 1204 0
24 IC 2391 OpC 08 40 32 -53 02.0           ~ 710 0
25 Cl* NGC 2632 S 138 Ro* 08 40 42.4810997427 +19 33 57.626579766   12.063 11.331     G4V 48 0
26 Cl* NGC 2632 S 155 Ro* 08 41 10.3085858520 +19 49 07.003931605   12.268 11.495     G6.6 44 0
27 BD+20 2181 Ro* 08 41 25.8431960416 +19 56 36.849175368   11.342 10.687     G0V 49 0
28 BD+20 2184 Ro* 08 41 43.8163614906 +20 13 36.755425121   10.988 10.431     F7 57 1
29 NGC 2660 OpC 08 42 38 -47 12.0   9.05 8.8     ~ 126 0
30 Cl* NGC 2682 ES I-46 * 08 50 53.3447325187 +11 43 40.065214014 15.318 15.06 14.448   13.569 G0V 41 0
31 NGC 2682 OpC 08 51 18 +11 48.0           ~ 2012 0
32 NGC 2682 159 * 08 51 27.8885891317 +11 55 40.949719456 14.598 13.94 13.320   12.625 G1IV 33 0
33 Cl* NGC 2682 ES III-9 * 08 51 27.9474785266 +11 50 11.919029103 15.180 15.08 14.491   13.669 G4V 33 0
34 Cl* NGC 2682 ES III-13 * 08 51 29.9638668720 +11 51 09.062503600 14.821 14.72 14.191 13.773 13.398 G2V 31 0
35 NGC 2682 178 * 08 51 31.9171561313 +11 51 16.664399650 14.694 14.63 14.030 13.704 13.304 G0V 27 0
36 Cl* NGC 2682 ES II-7 * 08 51 36.0753568316 +11 47 47.049856350 15.268 15.14 14.486   13.745 G1V 35 0
37 NGC 3680 OpC 11 25 38 -43 14.6   8.40 7.6     ~ 288 0
38 NGC 3680 60 * 11 26 20.7065618739 -43 13 07.466176954   14.99 14.36     ~ 24 0
39 NGC 3960 OpC 11 50 33 -55 40.4   9.07 8.3     ~ 115 0
40 NAME Coma Dwarf Galaxy G 12 26 59.0 +23 54 15     14.1     ~ 379 1
41 Cl Collinder 261 OpC 12 38 11.5 -68 22 01     10.7     ~ 154 0
42 NGC 6134 OpC 16 27 46 -49 09.1   7.89 7.2     ~ 130 0
43 NGC 6253 OpC 16 59 05 -52 42.0     10.2     ~ 143 0
44 Cl* IC 4651 MEI 6081 * 17 24 31.8192985679 -49 59 08.591581971           ~ 12 0
45 Cl* IC 4651 AMC 4226 * 17 24 43.4558015480 -50 01 01.274579314           ~ 15 0
46 IC 4651 17 * 17 24 48.0970124432 -49 55 47.356510983   15.250 14.545     ~ 13 0
47 IC 4651 OpC 17 24 49 -49 56.0           ~ 309 0
48 IC 4651 65 * 17 24 59.9717265502 -49 53 07.832280641       14.41   ~ 13 0
49 NAME Gal Center reg 17 45 40.04 -29 00 28.1           ~ 11309 0
50 IC 4665 OpC 17 46 18 +05 43.0           ~ 311 0
51 NGC 6791 OpC 19 20 53 +37 46.3   10.52 9.5     ~ 862 0
52 NGC 6819 OpC 19 41 18 +40 11.2   8.21 7.3     ~ 458 0
53 NGC 7789 OpC 23 57 24 +56 42.5   7.68 6.7     ~ 453 0

    Equat.    Gal    SGal    Ecl

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2020.03.30-16:37:52

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