2002A&A...393..855A

Query : 2002A&A...393..855A

2002A&A...393..855A - Astronomy and Astrophysics, volume 393, 855-866 (2002/10-3)

Dating star clusters in the Small Magellanic Cloud by means of integrated spectra.

AHUMADA A.V., CLARIA J.J., BICA E. and DUTRA C.M.

Abstract (from CDS):

In this study flux-calibrated integrated spectra in the range (3600-6800)Å are presented for 16 concentrated star clusters in the Small Magellanic Cloud (SMC), approximately half of which constitute unstudied objects. We have estimated ages and foreground interstellar reddening values from the comparison of the line strengths and continuum distribution of the cluster spectra with those of template cluster spectra with known parameters. Most of the sample clusters are young blue clusters (6-50Myr), while L28, NGC 643 and L114 are found to be intermediate-age clusters (1-6Gyr). One well known SMC cluster (NGC 416) was observed for comparison purposes. The sample includes clusters in the surroundings and main body of the SMC, and the derived foreground reddening values are in the range 0.00≤E(B-V)≤0.15. The present data also make up a cluster spectral library at SMC metallicity.

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Journal keyword(s): methods: observational - techniques: spectroscopic - galaxies: Small Magellanic Cloud, star clusters

Simbad objects: 22

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Number of rows : 22
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 NGC 121 GlC 00 26 49.0 -71 32 10   11.2 11.24     ~ 311 0
2 M 31 AGN 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 12651 1
3 [RZ2005] 34 Cl* 00 42 59.87 -72 35 21.0 14.30 14.28 13.69   12.97 ~ 21 0
4 NGC 241 Cl* 00 43 32.74 -73 26 25.4           ~ 26 1
5 NGC 242 OpC 00 43 37.57 -73 26 37.9   12.1       ~ 38 1
6 NGC 256 OpC 00 45 54.11 -73 30 23.9 12.67 12.75 12.50   12.02 ~ 38 0
7 [MA93] 163 Em* 00 47 11.4 -73 28 37 12.50 12.52 12.17   11.47 ~ 55 0
8 NGC 290 Cl* 00 51 12.33 -73 09 42.1 11.91 12.10 11.71   11.09 ~ 38 0
9 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 11152 1
10 ESO 51-6 Cl* 00 53 28.06 -71 23 55.2 12.29 12.91 12.88   12.90 ~ 17 0
11 ESO 51-6A EmG 00 53 35.5629745656 -69 35 41.116165512   15.58   14.36   ~ 14 0
12 NGC 306 Cl* 00 54 14.31 -72 14 27.3 12.08 12.23 12.07   11.40 ~ 33 0
13 LHA 115-S 26 Cl* 00 57 30.00 -72 15 53.0 11.29       11.34 ~ 41 1
14 IC 1624 Cl* 01 05 21.892 -72 02 33.31 12.56 12.60 12.42   11.98 ~ 34 0
15 NGC 416 Cl* 01 07 59.03 -72 21 20.5 12.73 12.55 11.76   10.71 ~ 148 1
16 HW 73 Cl* 01 16 24.85 -71 19 38.5 13.78 14.02 13.76   13.35 ~ 15 0
17 M 33 GiG 01 33 50.8965749232 +30 39 36.630403128 6.17 6.27 5.72     ~ 5839 1
18 NGC 643 Cl* 01 34 55.99 -75 33 17.1           ~ 30 1
19 NGC 796 Cl* 01 56 44 -74 13.2           ~ 35 0
20 NGC 1399 BiC 03 38 29.083 -35 27 02.67 11.05 9.74 9.59 8.12   ~ 1570 1
21 M 49 Sy2 12 29 46.8 +08 00 01   13.21 12.17     ~ 2094 2
22 NAME Local Group GrG ~ ~           ~ 8393 0

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