2010A&A...520A..85D

Query : 2010A&A...520A..85D

2010A&A...520A..85D - Astronomy and Astrophysics, volume 520A85-85 (2010/9-2)

Age and metallicity of star clusters in the Small Magellanic Cloud from integrated spectroscopy.

DIAS B., COELHO P., BARBUY B., KERBER L. and IDIART T.

Abstract (from CDS):

Analysis of ages and metallicities of star clusters in the Magellanic Clouds provide information for studies on the chemical evolution of the Clouds and other dwarf irregular galaxies. The aim is to derive ages and metallicities from integrated spectra of 14 star clusters in the Small Magellanic Cloud, including a few intermediate/old age star clusters. Making use of a full-spectrum fitting technique, we compared the integrated spectra of the sample clusters to three different sets of single stellar population models, using two fitting codes available in the literature. We derive the ages and metallicities of 9 intermediate/old age clusters, some of them previously unstudied, and 5 young clusters. We point out the interest of the newly identified as intermediate/old age clusters HW1, NGC 152, Lindsay 3, Lindsay 11, and Lindsay 113. We also confirm the old ages of NGC 361, NGC 419, Kron 3, and of the very well-known oldest SMC cluster, NGC 121.

Abstract Copyright: ∼

Journal keyword(s): Magellanic Clouds - galaxies: dwarf - galaxies: star clusters - stars: abundances - stars: fundamental parameters

Simbad objects: 49

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Number of rows : 49
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 Cl Lindsay 1 Cl* 00 03 53.50 -73 28 15.0   11.7       ~ 125 0
2 ESO 28-13 Cl* 00 18 25 -74 19.1   15.5       ~ 23 0
3 HW 1 As* 00 18 27 -73 23.7           ~ 14 0
4 ESO 28-15 OpC 00 21 27 -73 44.9   13.9       ~ 35 0
5 ESO 28-16 Cl* 00 22 40 -75 04.5   15.7       ~ 30 0
6 ESO 28-17 OpC 00 23 04 -73 40.2   15.3       ~ 32 0
7 Cl Lindsay 7 Cl* 00 24 43.16 -73 45 11.7   13.2       ~ 39 0
8 ESO 28-19 Cl* 00 24 45.98 -72 47 37.9   11.6 12.05     ~ 152 0
9 NGC 121 GlC 00 26 49.0 -71 32 10   11.2 11.24     ~ 330 0
10 ESO 28-22 OpC 00 27 45.17 -72 46 52.5 14.78 14.75 13.95   12.75 ~ 55 0
11 [RZ2005] 7 OpC 00 30 00.26 -73 22 40.7 15.46 14.92 13.84   12.52 ~ 31 0
12 NGC 152 OpC 00 32 56.76 -73 06 56.4 13.37 13.05 12.26   11.13 ~ 96 0
13 Cl Lindsay 19 Cl* 00 37 41.78 -73 54 19.7 13.70 14.78 13.18   12.17 ~ 36 0
14 NGC 222 OpC 00 40 42.11 -73 23 00.8 12.63 12.84 12.64   12.31 ~ 32 0
15 Cl Lindsay 27 Cl* 00 41 23.83 -72 53 32.0 13.37 13.28 12.44   11.49 ~ 46 0
16 NGC 256 OpC 00 45 54.11 -73 30 23.9 12.67 12.75 12.50   12.02 ~ 38 0
17 ESO 51-2 Cl* 00 47 24 -68 55.2           ~ 26 0
18 NGC 269 Cl* 00 48 22.25 -73 31 48.8 13.05 12.98 12.59   11.90 ~ 37 0
19 ESO 51-3 Cl* 00 48 50 -69 52.2   16.2       ~ 57 0
20 Cl Kron 28 OpC 00 51 39.55 -71 59 56.6 10.98 10.56 10.42   10.04 ~ 34 0
21 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 12317 1
22 NGC 294 Cl* 00 53 05.59 -73 22 49.4 12.66 12.67 12.24   11.61 ~ 44 1
23 NGC 330 Cl* 00 56 18.55 -72 27 45.1 9.37 9.76 9.55   8.89 ~ 445 0
24 NGC 339 OpC 00 57 47.62 -74 28 14.6 13.23 12.94 12.21   11.20 ~ 157 0
25 [BS95] 90 Cl* 00 59 07.25 -72 08 59.1 12.94 13.01 12.25   11.88 ~ 31 0
26 Cl Kron 44 OpC 01 02 06.34 -73 55 22.7 14.05 13.73 12.95   11.82 ~ 45 0
27 NGC 361 OpC 01 02 11.11 -71 36 25.3 12.86 12.43 11.77   10.70 ~ 105 0
28 HW 47 Cl* 01 04 05.37 -74 37 06.1 16.68 16.13 15.25   13.95 ~ 26 0
29 OGLE-CL SMC 237 Cl* 01 04 22.49 -72 50 51.9           ~ 27 0
30 NGC 411 Cl* 01 07 55.64 -71 46 03.1 13.05 12.63 12.10   11.11 ~ 107 0
31 NGC 416 Cl* 01 07 59.03 -72 21 20.5 12.73 12.55 11.76   10.71 ~ 156 1
32 NGC 419 OpC 01 08 17.26 -72 53 01.8 11.41 11.16 10.50   9.34 ~ 287 0
33 NGC 458 OpC 01 14 52.94 -71 33 00.0 11.86 11.85 11.66   11.23 ~ 79 0
34 ESO 29-44 Cl* 01 30 38 -76 03.3   16.4       ~ 28 0
35 Cl Lindsay 108 Cl* 01 31 32 -71 57.2   14.8       ~ 27 0
36 ESO 29-48 Cl* 01 34 26 -72 52.5   14.3       ~ 34 0
37 NGC 643 Cl* 01 35 00.0 -75 33 24           ~ 33 1
38 HW 84 Cl* 01 41 43 -71 09.7           ~ 24 0
39 HW 86 Cl* 01 42 22 -74 10.4           ~ 26 0
40 OGLE-CL MBR 36 Cl* 01 48 02 -70 00.2           ~ 17 0
41 Cl Lindsay 113 Cl* 01 49 30.0 -73 43 40   11.9       ~ 97 0
42 ESO 30-5 Cl* 01 50 19 -74 21.4   12.1       ~ 30 0
43 ESO 13-25 Cl* 01 55 33 -77 39.3           ~ 21 0
44 NGC 796 Cl* 01 56 44 -74 13.2           ~ 39 0
45 NAME Magellanic Clouds GrG 03 00 -71.0           ~ 7988 0
46 Cl Melotte 25 OpC 04 30 27.4 +16 46 43           ~ 3309 0
47 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 19090 0
48 ESO 121-3 Cl* 06 02 03.32 -60 31 25.6   14.91 14.04     ~ 118 0
49 NAME Local Group GrG ~ ~           ~ 9325 0

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