2009AJ....138.1403G

Query : 2009AJ....138.1403G

2009AJ....138.1403G - Astron. J., 138, 1403-1416 (2009/November-0)

Structural parameters of seven Small Magellanic Cloud intermediate-age and old star clusters.

GLATT K., GREBEL E.K., GALLAGHER J.S., NOTA A., SABBI E., SIRIANNI M., CLEMENTINI G., DA COSTA G., TOSI M., HARBECK D., KOCH A. and KAYSER A.

Abstract (from CDS):

We present structural parameters for the seven intermediate-age and old star clusters NGC 121, Lindsay 1, Kron 3, NGC 339, NGC 416, Lindsay 38, and NGC 419 in the Small Magellanic Cloud (SMC). We fit King profiles and Elson, Fall, and Freeman profiles to both surface-brightness and star-count data taken with the Advanced Camera for Surveys aboard the Hubble Space Telescope. Clusters older than ∼1 Gyr show a spread in cluster core radii that increases with age, while the youngest clusters have relatively compact cores. No evidence for post-core-collapse clusters was found. We find no correlation between core radius and distance from the SMC center, although consistent with other studies of dwarf galaxies, some relatively old and massive clusters have low densities. The oldest SMC star cluster, the only globular NGC121, is the most elliptical object of the studied clusters. No correlation is seen between ellipticity and distance from the SMC center. The structures of these massive intermediate-age (1-8 Gyr) SMC star clusters thus appear to primarily result from internal evolutionary processes.

Abstract Copyright: ∼

Journal keyword(s): galaxies: star clusters - Magellanic Clouds

Simbad objects: 46

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Number of rows : 46
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 V* R And S* 00 24 01.9457463096 +38 34 37.370144352 10.61 9.36 7.39 4.45 2.30 S5-7/4-5e 369 0
3 NGC 104 GlC 00 24 05.359 -72 04 53.20     4.09     ~ 4158 0
4 ESO 28-19 Cl* 00 24 45.98 -72 47 37.9   11.6 12.05     ~ 152 0
5 NGC 121 GlC 00 26 49.0 -71 32 10   11.2 11.24     ~ 330 0
6 ESO 28-22 OpC 00 27 45.17 -72 46 52.5 14.78 14.75 13.95   12.75 ~ 55 0
7 NGC 152 OpC 00 32 56.76 -73 06 56.4 13.37 13.05 12.26   11.13 ~ 96 0
8 NGC 176 Cl* 00 35 58.68 -73 09 56.5 12.76 13.06 13.01   13.09 ~ 33 0
9 Cl Kron 17 OpC 00 41 01 -72 34.3   12.7       ~ 20 0
10 NGC 241 Cl* 00 43 32.74 -73 26 25.4           ~ 26 1
11 ESO 51-3 Cl* 00 48 50 -69 52.2   16.2       ~ 57 0
12 NGC 290 Cl* 00 51 12.33 -73 09 42.1 11.91 12.10 11.71   11.09 ~ 39 0
13 Cl Kron 28 OpC 00 51 39.55 -71 59 56.6 10.98 10.56 10.42   10.04 ~ 34 0
14 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 12317 1
15 NGC 288 GlC 00 52 45.24 -26 34 57.4   10 8.13     ~ 1130 0
16 ESO 51-6 Cl* 00 53 28.06 -71 23 55.2 12.29 12.91 12.88   12.90 ~ 17 0
17 OGLE-CL SMC 104 OpC 00 55 33.18 -72 50 00.1 13.34 13.25 12.89   12.20 ~ 35 0
18 NGC 330 Cl* 00 56 18.55 -72 27 45.1 9.37 9.76 9.55   8.89 ~ 445 0
19 LHA 115-S 26 Cl* 00 57 30.00 -72 15 53.0 11.29       11.34 ~ 42 1
20 NGC 339 OpC 00 57 47.62 -74 28 14.6 13.23 12.94 12.21   11.20 ~ 157 0
21 NGC 346 Cl* 00 59 04.4000 -72 10 39.000           ~ 547 0
22 IC 1611 OpC 00 59 48.73 -72 20 01.4 12.14 12.26 11.96   11.33 ~ 35 0
23 IC 1612 OpC 01 00 00.26 -72 22 18.2 12.59 12.84 12.31   11.33 ~ 31 0
24 OGLE-CL SMC 129 Cl* 01 01 44.80 -72 33 51.2 11.12 11.50 11.47   11.38 ~ 28 0
25 Cl Kron 44 OpC 01 02 06.34 -73 55 22.7 14.05 13.73 12.95   11.82 ~ 45 0
26 NGC 361 OpC 01 02 11.11 -71 36 25.3 12.86 12.43 11.77   10.70 ~ 105 0
27 OGLE-CL SMC 134 OpC 01 03 11.53 -72 16 23.5 12.94 13.40 13.56   13.61 ~ 30 0
28 IC 1624 Cl* 01 05 21.892 -72 02 33.31 12.56 12.60 12.42   11.98 ~ 34 0
29 NGC 411 Cl* 01 07 55.64 -71 46 03.1 13.05 12.63 12.10   11.11 ~ 107 0
30 NGC 416 Cl* 01 07 59.03 -72 21 20.5 12.73 12.55 11.76   10.71 ~ 156 1
31 NGC 419 OpC 01 08 17.26 -72 53 01.8 11.41 11.16 10.50   9.34 ~ 287 0
32 NGC 458 OpC 01 14 52.94 -71 33 00.0 11.86 11.85 11.66   11.23 ~ 79 0
33 ESO 30-5 Cl* 01 50 19 -74 21.4   12.1       ~ 30 0
34 MCG-06-07-001 G 02 39 59.3 -34 26 57   9.02 7.4     ~ 1894 1
35 NAME Magellanic Clouds GrG 03 00 -71.0           ~ 7988 0
36 ACO S 373 ClG 03 38 29.4 -35 27 08           ~ 2029 0
37 NGC 1711 Cl* 04 50 37.320 -69 59 01.72   11.22 11.10     ~ 115 0
38 NGC 1806 GlC 05 02 11.180 -67 59 05.89   11.1       ~ 165 0
39 HD 268850 AB* 05 02 21.4730341272 -66 06 38.294439372   11.83 11.55 12.43   ~ 89 0
40 NGC 1805 GlC 05 02 21.690 -66 06 39.43           ~ 115 0
41 NGC 1846 Cl* 05 07 34.900 -67 27 32.45   12.08 11.31     ~ 231 0
42 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 19090 0
43 ESO 121-3 Cl* 06 02 03.32 -60 31 25.6   14.91 14.04     ~ 118 0
44 ClG 1710-2507 ClG 17 13 39 -25 11.1           ~ 19 0
45 NAME Galactic Center reg 17 45 39.60213 -29 00 22.0000           ~ 16269 0
46 NGC 6909 AG? 20 27 38.9325072768 -47 01 37.164117144   12.76 11.88 11.52   ~ 112 0

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