2008A&A...485...71C


Query : 2008A&A...485...71C

2008A&A...485...71C - Astronomy and Astrophysics, volume 485, 71-80 (2008/7-1)

Structures in surface-brightness profiles of LMC and SMC star clusters: evidence of mergers?

CARVALHO L., SAURIN T.A., BICA E., BONATTO C. and SCHMIDT A.A.

Abstract (from CDS):

The LMC and SMC are rich in binary star clusters, and some mergers are expected. It is thus important to characterise single clusters, binary clusters and candidates for mergers. We selected a sample of star clusters in each Cloud with this aim. Surface photometry of 25 SMC and 22 LMC star clusters was carried with the ESO Danish 1.54m telescope. 23 clusters were observed for the first time for these purposes. We fitted Elson, Fall and Freeman (EFF) profiles to the data, deriving structural parameters, luminosities and masses. We also use isophotal maps to constrain candidates for cluster interactions. The structural parameters, luminosities and masses presented good agreement with those in the literature. Three binary clusters in the sample have a double profile. Four clusters (NGC376, K50, K54 and NGC1810) do not have companions and present important deviations from EFF profiles. The present sample contains blue and red Magellanic clusters. Profiles with excess with respect to EFF were detected in some blue clusters. We find evidence that important deviations from the body of EFF profiles might be used as a tool to detect cluster mergers.

Abstract Copyright:

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

CDS comments: In reflist De Oliveira et al. 2000A&A.146.57D is a misprint for De Oliveira et al. 2000A&AS.146.57D.

Simbad objects: 56

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Number of rows : 56
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 NGC 176 Cl* 00 35 58.68 -73 09 56.5 12.76 13.06 13.01   13.09 ~ 33 0
3 Cl Kron 17 OpC 00 41 01 -72 34.3   12.7       ~ 20 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 290 Cl* 00 51 12.33 -73 09 42.1 11.91 12.10 11.71   11.09 ~ 38 0
7 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 11178 1
8 ESO 51-6 Cl* 00 53 28.06 -71 23 55.2 12.29 12.91 12.88   12.90 ~ 17 0
9 OGLE-CL SMC 104 OpC 00 55 33.18 -72 50 00.1 13.34 13.25 12.89   12.20 ~ 35 0
10 NGC 330 Cl* 00 56 18.55 -72 27 45.1 9.37 9.76 9.55   8.89 ~ 411 0
11 LHA 115-S 26 Cl* 00 57 30.00 -72 15 53.0 11.29       11.34 ~ 41 1
12 NGC 339 OpC 00 57 47.62 -74 28 14.6 13.23 12.94 12.21   11.20 ~ 145 0
13 NGC 346 Cl* 00 59 04.4000 -72 10 39.000           ~ 490 0
14 [BS95] 90 Cl* 00 59 07.25 -72 08 59.1 12.94 13.01 12.25   11.88 ~ 29 0
15 IC 1611 OpC 00 59 48.73 -72 20 01.4 12.14 12.26 11.96   11.33 ~ 34 0
16 OGLE-CL SMC 119 Cl* 00 59 56.87 -72 22 24.4           ~ 17 0
17 IC 1612 OpC 01 00 00.26 -72 22 18.2 12.59 12.84 12.31   11.33 ~ 31 0
18 OGLE-CL SMC 129 Cl* 01 01 44.80 -72 33 51.2 11.12 11.50 11.47   11.38 ~ 28 0
19 NGC 361 OpC 01 02 11.11 -71 36 25.3 12.86 12.43 11.77   10.70 ~ 101 0
20 OGLE-CL SMC 134 OpC 01 03 11.53 -72 16 23.5 12.94 13.40 13.56   13.61 ~ 29 0
21 NGC 376 Cl* 01 03 50.21 -72 49 33.5 10.83 11.16 10.90   10.17 ~ 56 0
22 ESO 51-15 OpC 01 04 36.20 -72 09 36.7 11.64 12.14 12.26   12.48 ~ 29 0
23 IC 1624 Cl* 01 05 21.892 -72 02 33.31 12.56 12.60 12.42   11.98 ~ 34 0
24 ESO 29-31 OpC 01 06 47.31 -72 16 23.7 11.88 12.29 11.47   9.99 ~ 24 0
25 NGC 411 Cl* 01 07 55.64 -71 46 03.1 13.05 12.63 12.10   11.11 ~ 105 0
26 NGC 416 Cl* 01 07 59.03 -72 21 20.5 12.73 12.55 11.76   10.71 ~ 148 1
27 NGC 419 OpC 01 08 17.26 -72 53 01.8 11.41 11.16 10.50   9.34 ~ 272 0
28 NGC 458 OpC 01 14 52.94 -71 33 00.0 11.86 11.85 11.66   11.23 ~ 76 0
29 ESO 30-5 Cl* 01 50 19 -74 21.4   12.1       ~ 29 0
30 NAME Magellanic Clouds GrG 03 00 -71.0           ~ 7084 0
31 NGC 1783 GlC 04 59 08.590 -65 59 15.84   10.9 10.93     ~ 253 0
32 NGC 1810 Cl* 05 03 23.680 -66 22 55.96   12.12 11.90     ~ 24 0
33 NGC 1818 GlC 05 04 13.300 -66 26 05.47           ~ 261 0
34 NGC 1831 GlC 05 06 16.12 -64 55 06.9   11.52 11.18     ~ 164 0
35 NGC 1847 Cl* 05 07 08.200 -68 58 15.49   12.508 12.469     ~ 89 0
36 NGC 1846 Cl* 05 07 34.900 -67 27 32.45   12.08 11.31     ~ 215 0
37 NGC 1856 Cl* 05 09 30.290 -69 07 45.08   10.40 10.06     ~ 153 0
38 NGC 1870 Cl* 05 13 08.920 -69 06 59.62   11.45 11.26     ~ 30 0
39 NGC 1866 GlC 05 13 38.920 -65 27 52.75           ~ 421 0
40 NGC 1868 GlC 05 14 36.60 -63 57 25.7   12.02 11.57     ~ 121 0
41 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 17478 0
42 [HP99] 774 OpC 05 28 27 -68 58.9     11.62     ~ 14 0
43 NGC 1978 GlC 05 28 45.330 -66 14 12.04   10.7 10.70     ~ 309 0
44 NGC 2004 Cl* 05 30 41.340 -67 17 21.83   9.6       ~ 275 0
45 NGC 2011 Cl* 05 32 19 -67 31.3   10.62 10.58     ~ 71 0
46 Anon 0532-67 Cl* 05 32 20 -67 31.7   12.39 12.02     ~ 13 0
47 RMC 136 Cl* 05 38 42.396 -69 06 03.36   5.81 5.40     ~ 2019 2
48 NGC 2100 Cl* 05 42 07.200 -69 12 26.99   9.6       ~ 189 0
49 NGC 2121 Cl* 05 48 13.190 -71 28 52.00   13.21 12.37     ~ 132 0
50 NGC 2157 Cl* 05 57 35.430 -69 11 48.67   10.35 10.16     ~ 120 0
51 NGC 2159 GlC 05 57 57 -68 37.4   11.66 11.38     ~ 46 0
52 NGC 2164 OpC 05 58 55.900 -68 30 58.09   10.44 10.34     ~ 123 0
53 NGC 2213 Cl* 06 10 42.000 -71 31 43.99           ~ 95 0
54 NGC 2210 GlC 06 11 31.296 -69 07 17.04   10.9 10.94     ~ 187 0
55 NGC 2214 OpC 06 12 57 -68 15.6   11.04 10.93     ~ 119 0
56 NAME Hodge 11 GlC 06 14 22.92 -69 50 54.9   12.57 11.93     ~ 110 0

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