2013A&A...554A...2K


C.D.S. - SIMBAD4 rel 1.7 - 2020.01.20CET15:14:15

2013A&A...554A...2K - Astronomy and Astrophysics, volume 554A, 2-2 (2013/6-1)

Chemical analysis of giant stars in the young open cluster NGC 3114.

KATIME SANTRICH O.J., PEREIRA C.B. and DRAKE N.A.

Abstract (from CDS):

Open clusters are very useful targets for examining possible trends in galactocentric distance and age, especially when young and old open clusters are compared. We carried out a detailed spectroscopic analysis to derive the chemical composition of seven red giants in the young open cluster NGC 3114. Abundances of C, N, O, Li, Na, Mg, Al, Ca, Si, Ti, Ni, Cr, Y, Zr, La, Ce, and Nd were obtained, as well as the carbon isotopic ratio. The atmospheric parameters of the studied stars and their chemical abundances were determined using high-resolution optical spectroscopy. We employed the local-thermodynamic-equilibrium model atmospheres of Kurucz and the spectral analysis code MOOG. The abundances of the light elements were derived using the spectral synthesis technique. We found that NGC 3114 has a mean metallicity of [Fe/H]=-0.01±0.03. The isochrone fit yielded a turn-off mass of 4.2M. The [N/C] ratio is in good agreement with the models predicted by first dredge-up. We found that two stars, HD 87479 and HD 304864, have high rotational velocities of 15.0km/s and 11.0km/s; HD 87526 is a halo star and is not a member of NGC 3114. The carbon and nitrogen abundance in NGC 3114 agree with the field and cluster giants. The oxygen abundance in NGC 3114 is lower compared to the field giants. The [O/Fe] ratio is similar to the giants in young clusters. We detected sodium enrichment in the analyzed cluster giants. As far as the other elements are concerned, their [X/Fe] ratios follow the same trend seen in giants with the same metallicity.

Abstract Copyright:

Journal keyword(s): stars: abundances - open clusters and associations: general - open clusters and associations: individual: NGC 3114 - stars: evolution

Simbad objects: 51

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Number of rows : 51

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 NGC 188 OpC 00 48 26 +85 15.3           ~ 800 0
2 HD 10613 Pe* 01 42 45.0635739639 -38 00 19.055975272   10.61 9.58     G8IIIp 25 0
3 NGC 752 OpC 01 57 41 +37 47.1           ~ 527 0
4 Cl Trumpler 2 OpC 02 36 53 +55 54.9           ~ 83 0
5 NGC 1245 OpC 03 14 48 +47 15.2   9.16 8.4     ~ 118 0
6 NGC 1545 OpC 04 20 57 +50 15.2   7.2 6.2     ~ 82 0
7 Cl Melotte 25 OpC 04 26 54.00 +15 52 00.0           ~ 2603 0
8 NGC 1817 OpC 05 12 15 +16 41.4   8.44 7.7     ~ 146 0
9 Cl Berkeley 17 OpC 05 20 37 +30 35.4           ~ 130 0
10 Cl Berkeley 20 OpC 05 32 37.0 +00 11 18           ~ 98 0
11 Cl Berkeley 21 245 * 05 51 34.4805829156 +21 48 29.281408611   18.878 17.55     ~ 12 0
12 Cl Berkeley 21 OpC 05 51 42 +21 47.0   12.26 11.1     ~ 89 0
13 Cl* Berkeley 21 TPM 406 * 05 51 53.63 +21 51 01.6   19.379 18.395     ~ 3 0
14 M 37 OpC 05 52 18 +32 33.2   6.19 5.6     ~ 327 2
15 NGC 2158 OpC 06 07 25 +24 05.8           ~ 241 0
16 NGC 2243 OpC 06 29 34 -31 17.0   10.12 9.4     ~ 210 0
17 Cl Berkeley 29 OpC 06 53 04.2 +16 55 39   14.3       ~ 137 0
18 Cl Berkeley 32 OpC 06 58 06 +06 26.0           ~ 105 0
19 NGC 2360 OpC 07 17 43 -15 38.5           ~ 164 0
20 NGC 2420 OpC 07 38 23 +21 34.4   9.0 8.3     ~ 393 0
21 NGC 2447 OpC 07 44 30 -23 51.4           ~ 114 1
22 Cl Berkeley 39 OpC 07 46 42 -04 36.0           ~ 150 1
23 NGC 2632 OpC 08 40 24 +19 40.0           ~ 1189 0
24 NGC 2682 OpC 08 51 18 +11 48.0           ~ 1995 0
25 HD 87109 * 10 00 54.3329016882 -60 13 34.347524376   8.95 7.69     G8Ib/II 30 0
26 HD 304864 * 10 01 03.4534135819 -60 17 35.647878024   8.88 7.68     G5 15 1
27 NGC 3114 OpC 10 02 36 -60 07.2   4.47 4.2     ~ 163 0
28 HD 304859 * 10 02 57.1933854602 -60 14 22.765281275   9.82 8.49     K2 9 0
29 HD 87479 * 10 03 21.0890739058 -59 56 53.655382713   9.12 8.00     G5III 18 0
30 HD 87526 * 10 03 38.9749913589 -60 11 59.363581121   8.20 7.32     G0II 27 0
31 HD 87566 * 10 03 51.4941365714 -60 03 10.211816565   9.55 8.31     K1III 19 0
32 HD 87833 * 10 05 44.0900973535 -60 19 00.999768154   9.69 8.56     G8II/III 23 1
33 NGC 3532 OpC 11 05 39 -58 45.2           ~ 262 0
34 NGC 3680 OpC 11 25 38 -43 14.6   8.40 7.6     ~ 285 0
35 BD+04 2466 PM* 11 26 49.1890409114 +03 51 51.646284678   11.22 10.67 10.45   KIIvw 67 0
36 V* TZ Crv LP* 12 00 57.2663387395 -21 15 02.778916850 10.82 9.55 8.14     G6/8IIICNII 36 0
37 NGC 5822 OpC 15 04 28 -54 23.4     6.5     ~ 166 0
38 NGC 6067 OpC 16 13 11 -54 13.1   6.21 5.6     ~ 165 0
39 NGC 6134 OpC 16 27 46 -49 09.1   7.89 7.2     ~ 129 0
40 NGC 6281 OpC 17 04 41 -37 59.1           ~ 100 0
41 VdBH 86 RNe 17 19 46 -36 05.8           ~ 59 0
42 IC 4651 OpC 17 24 49 -49 56.0           ~ 308 0
43 NGC 6475 OpC 17 53 51 -34 47.6           ~ 331 0
44 HD 167768 PM* 18 16 53.1007226823 -03 00 26.642984237   6.89 6.00     G8III 84 0
45 NGC 6633 OpC 18 27 31.2 +06 34 12           ~ 317 0
46 IC 4725 OpC 18 31 47 -19 07.0           ~ 189 0
47 IC 4756 OpC 18 38 31.2 +05 29 24           ~ 193 0
48 NGC 6705 OpC 18 51 05 -06 16.2   6.32 5.8     ~ 350 0
49 NGC 7142 OpC 21 45 10.0 +65 46 18   10.36 9.3     ~ 117 0
50 HD 206983 Pe* 21 46 09.3424956829 -15 14 39.768971268   11.1 9.45     GpBa 37 1
51 NGC 7789 OpC 23 57 24 +56 42.5   7.68 6.7     ~ 449 0

    Equat.    Gal    SGal    Ecl

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2020.01.20-15:14:15

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