2008MNRAS.389..429P


C.D.S. - SIMBAD4 rel 1.7 - 2021.01.27CET18:53:01

2008MNRAS.389..429P - Mon. Not. R. Astron. Soc., 389, 429-440 (2008/September-1)

Seven young star clusters in the inner region of the Small Magellanic Cloud.

PIATTI A.E., GEISLER D., SARAJEDINI A., GALLART C. and WISCHNJEWSKY M.

Abstract (from CDS):

We present CCD photometry in the Washington system C and T1 passbands down to T1∼ 22 in the fields of L35, L45, L49, L50, L62, L63 and L85, seven poorly studied star clusters in the inner region of the Small Magellanic Cloud (SMC). We measured T1 magnitudes and C - T1 colours for a total of 114826 stars distributed throughout cluster areas of 13.7x13.7arcmin2 each. Cluster radii were estimated from star counts distributed throughout the entire observed fields. The seven clusters are generally characterized by a relatively small angular size and by a high field star contamination. We performed an in-depth analysis of the field star contamination of the colour-magnitude diagrams (CMDs), and statistically cleaned the cluster CMDs. Based on the best fits of isochrones computed by the Padova group to the (T1,C - T1) CMDs, we derive ages for the sample, assuming Z = 0.004, finding ages between 25Myr and 1.2Gyr. We then examined different relationships between positions in the SMC, age and metallicity of a larger sample of clusters including our previous work whose ages and metallicities are on the same scale used in this paper. We confirm previous results in the sense that the further a cluster is from the centre of the galaxy, the older and more metal poor it is, with some dispersion; although clusters associated with the Magellanic Bridge clearly do not obey the general trend. The number of clusters within ∼ 2° of the SMC centre appears to have increased substantially after ∼2.5Gyr ago, hinting at a burst.

Abstract Copyright: © 2008 The Authors. Journal compilation © 2008 RAS

Journal keyword(s): techniques: photometric - galaxies: individual: SMC - Magellanic Clouds - galaxies: star clusters

VizieR on-line data: <Available at CDS (J/MNRAS/389/429): table2.dat table3.dat table4.dat table5.dat table6.dat table7.dat table8.dat>

Nomenclature: Table 2: Cl* Lindsay 35 PGS NNNNN N=-. Table 3: Cl* Lindsay 45 PGS NNNNN N=-. Table 4: Cl* Lindsay 49 PGS NNNNN N=-. Table 5: Cl* Lindsay 50 PGS NNNNN> N=-. Table 6: Cl* Lindsay 62 PGS NNNNN N=-. Table 7: Cl* Lindsay 63 PGS NNNNN N=-. Table 8: Cl* Lindsay 85 PGS NNNNN N=-.

Status at CDS : All or part of tables of objects will not be ingested in SIMBAD.

Simbad objects: 59

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Number of rows : 59

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 Cl Lindsay 1 Cl* 00 03 54 -73 28.3   11.7       ~ 96 0
2 ESO 28-15 OpC 00 21 27 -73 44.9   13.9       ~ 23 0
3 ESO 28-16 Cl* 00 22 40 -75 04.5   15.7       ~ 24 0
4 ESO 28-17 OpC 00 23 04 -73 40.2   15.3       ~ 22 0
5 Cl Lindsay 7 Cl* 00 24 43.16 -73 45 11.7   13.2       ~ 30 0
6 ESO 28-19 Cl* 00 24 47 -72 47.7   11.6 12.05     ~ 132 0
7 ESO 28-20 Cl* 00 25 26.60 -74 04 29.7 15.45 14.88 14.23   13.13 ~ 25 0
8 NGC 121 GlC 00 26 49.0 -71 32 10   11.2 11.24     ~ 277 0
9 ESO 28-22 OpC 00 27 45.17 -72 46 52.5 14.78 14.75 13.95   12.75 ~ 42 0
10 NGC 152 OpC 00 32 56.26 -73 06 56.6 13.37 13.05 12.26   11.13 ~ 81 0
11 HW 8 Cl* 00 33 47.92 -73 37 58.3 13.96 14.09 13.83   13.37 ~ 15 0
12 Cl Lindsay 19 Cl* 00 37 41.78 -73 54 19.7 13.70 14.78 13.18   12.17 ~ 28 0
13 Cl Lindsay 27 Cl* 00 41 23.83 -72 53 32.0 13.37 13.28 12.44   11.49 ~ 37 0
14 Bruck 34 Cl* 00 44 51.57 -73 00 07.4           ~ 14 0
15 NGC 256 OpC 00 45 54.11 -73 30 23.9 12.67 12.75 12.50   12.02 ~ 32 0
16 [MA93] 163 Em* 00 47 11.4 -73 28 37 12.50 12.52 12.17   11.47 ~ 51 0
17 ESO 51-2 Cl* 00 47 24 -68 55.2           ~ 19 0
18 OGLE-CL SMC 45 OpC 00 48 02.85 -73 29 17.8 14.21 14.20 14.00   13.78 ~ 24 0
19 NGC 269 Cl* 00 48 22.25 -73 31 48.8 13.05 12.98 12.59   11.90 ~ 34 0
20 ESO 51-3 Cl* 00 48 50 -69 52.2   16.2       ~ 43 0
21 Cl Lindsay 39 Cl* 00 49 16.16 -73 22 18.6 12.93 12.84 12.53   12.30 ~ 28 0
22 Cl Kron 28 OpC 00 51 39.55 -71 59 56.6 10.98 10.56 10.42   10.04 ~ 28 0
23 [RZ2005] 73 OpC 00 52 36.07 -72 11 36.5 12.28 12.74 12.12   10.94 ~ 19 0
24 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 9661 1
25 NGC 294 Cl* 00 53 05.59 -73 22 49.4 12.66 12.67 12.24   11.61 ~ 38 1
26 NGC 299 Cl* 00 53 24.74 -72 11 47.6 11.71 12.05 11.73   10.67 ~ 37 0
27 NGC 306 Cl* 00 54 14.31 -72 14 27.3 12.08 12.23 12.07   11.40 ~ 30 0
28 ESO 51-7 Cl* 00 54 54.21 -72 06 48.0 12.71 13.01 13.07   11.70 ~ 18 0
29 NGC 330 Cl* 00 56 20.59 -72 27 12.5 9.37 9.76 9.55   8.89 ~ 370 0
30 NGC 339 OpC 00 57 48.90 -74 28 00.2 13.23 12.94 12.21   11.20 ~ 120 0
31 IC 1611 OpC 00 59 48.73 -72 20 01.4 12.14 12.26 11.96   11.33 ~ 31 0
32 IC 1612 OpC 01 00 00.26 -72 22 18.2 12.59 12.84 12.31   11.33 ~ 28 0
33 OGLE-CL SMC 124 Cl* 01 00 33.87 -72 21 50.8 12.25 12.71 12.54   12.03 ~ 26 0
34 OGLE-CL SMC 129 Cl* 01 01 44.80 -72 33 51.2 11.12 11.50 11.47   11.38 ~ 26 0
35 Cl Kron 44 OpC 01 02 06.34 -73 55 22.7 14.05 13.73 12.95   11.82 ~ 34 0
36 NGC 361 OpC 01 02 12.83 -71 36 16.2 12.86 12.43 11.77   10.70 ~ 91 0
37 NGC 376 Cl* 01 03 50.21 -72 49 33.5 10.83 11.16 10.90   10.17 ~ 48 0
38 HW 47 Cl* 01 04 05.37 -74 37 06.1 16.68 16.13 15.25   13.95 ~ 19 0
39 OGLE-CL SMC 237 Cl* 01 04 22.49 -72 50 51.9           ~ 20 0
40 NAME SMC Bar PoG 01 05 -72.6           ~ 202 0
41 NGC 411 Cl* 01 07 55.95 -71 46 04.5 13.05 12.63 12.10   11.11 ~ 96 0
42 NGC 416 Cl* 01 07 59.0 -72 21 20 12.73 12.55 11.76   10.71 ~ 130 1
43 NGC 419 OpC 01 08 17.79 -72 53 02.8 11.41 11.16 10.50   9.34 ~ 233 0
44 NGC 422 OpC 01 09 24.50 -71 45 59.0 13.56 13.45 13.26   12.83 ~ 28 0
45 IC 1641 Cl* 01 09 39.74 -71 46 02.8 15.43 15.12 14.99   14.66 ~ 15 0
46 NGC 458 OpC 01 14 53.36 -71 32 58.7 11.86 11.85 11.66   11.23 ~ 72 0
47 ESO 29-44 Cl* 01 30 38 -76 03.3   16.4       ~ 21 0
48 Cl Lindsay 108 Cl* 01 31 32 -71 57.2   14.8       ~ 21 0
49 ESO 29-48 Cl* 01 34 26 -72 52.5   14.3       ~ 23 0
50 NGC 643 Cl* 01 34 55.99 -75 33 17.1           ~ 26 1
51 Cl Lindsay 112 Cl* 01 36 01 -75 27.5   16.2       ~ 22 0
52 HW 84 Cl* 01 41 43 -71 09.7           ~ 17 0
53 HW 86 Cl* 01 42 22 -74 10.4           ~ 20 0
54 Cl Lindsay 113 Cl* 01 49 30.0 -73 43 40   11.9       ~ 76 0
55 ESO 30-5 Cl* 01 50 19 -74 21.4   12.1       ~ 27 0
56 NGC 796 Cl* 01 56 44 -74 13.2           ~ 29 0
57 NAME Magellanic Clouds GrG 03 00 -71.0           ~ 5829 1
58 NAME Magellanic Bridge HI 03 11 -77.5           ~ 348 1
59 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 15129 1

    Equat.    Gal    SGal    Ecl

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2021.01.27-18:53:01

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