2009AJ....138.1243H

Query : 2009AJ....138.1243H

2009AJ....138.1243H - Astron. J., 138, 1243-1260 (2009/November-0)

The star formation history of the Large Magellanic Cloud.

HARRIS J. and ZARITSKY D.

Abstract (from CDS):

We present the first ever global, spatially resolved reconstruction of the star formation history (SFH) of the Large Magellanic Cloud (LMC), based on the application of our StarFISH analysis software to the multiband photometry of 20 million of its stars from the Magellanic Clouds Photometric Survey. The general outlines of our results are consistent with previously published results: following an initial burst of star formation, there was a quiescent epoch from approximately 12 to 5 Gyr ago. Star formation then resumed and has proceeded until the current time at an average rate of roughly 0.2 M☉/yr, with temporal variations at the factor of 2 level. The re-ignition of star formation about 5 Gyr ago, in both the LMC and Small Magellanic Cloud (SMC), is suggestive of a dramatic event at that time in the Magellanic system. Among the global variations in the recent star formation rate are peaks at roughly 2 Gyr, 500 Myr, 100 Myr, and 12 Myr. The peaks at 500 Myr and 2 Gyr are nearly coincident with similar peaks in the SFH of the SMC, suggesting a joint history for these galaxies extending back at least several Gyr. The chemical enrichment history recovered from our StarFISH analysis is in broad agreement with that inferred from the LMC's star cluster population, although our constraints on the ancient chemical enrichment history are weak. We conclude from the concordance between the star formation and chemical enrichment histories of the field and cluster populations that the field and cluster star formation modes are tightly coupled.

Abstract Copyright: ∼

Journal keyword(s): galaxies: evolution - galaxies: individual: Large Magellanic Cloud - galaxies: stellar content - Magellanic Clouds

VizieR on-line data: <Available at CDS (J/AJ/138/1243): table2.dat>

Simbad objects: 92

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Number of rows : 92
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 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 12317 1
2 NAME Magellanic Clouds GrG 03 00 -71.0           ~ 7988 0
3 NAME Ret GlC 04 36 10.15 -58 51 34.8   14.00 14.25 13.50   ~ 177 1
4 NGC 1651 GlC 04 37 32.530 -70 35 08.71   12.99 12.28     ~ 125 0
5 KMHK 21 Cl* 04 37 51.550 -69 01 42.09   14.56 13.80     ~ 24 0
6 NGC 1841 GlC 04 45 24.38 -83 59 53.3   12.23 11.43     ~ 190 0
7 NGC 1711 Cl* 04 50 37.320 -69 59 01.72   11.22 11.10     ~ 115 0
8 NGC 1718 Cl* 04 52 25.040 -67 03 08.50   13.01 12.25     ~ 77 0
9 NGC 1754 Cl* 04 54 18.080 -70 26 32.58   12.32 11.57     ~ 96 0
10 NGC 1777 Cl* 04 55 48 -74 17.0   13.40 12.80     ~ 44 0
11 ESO 85-21 Cl* 04 57 22.18 -62 32 08.2           ~ 22 0
12 NGC 1786 Cl* 04 59 07.470 -67 44 45.44   10.1       ~ 152 0
13 NGC 1806 GlC 05 02 11.180 -67 59 05.89   11.1       ~ 165 0
14 NGC 1835 Cl* 05 05 09.210 -69 24 20.96   11.314 10.596     ~ 173 0
15 SOI 343 Cl* 05 05 24.7054660512 -68 30 04.098795732   13.022 12.969     A1Iab 28 0
16 NGC 1836 Cl* 05 05 35.830 -68 37 45.68   12.50 12.22     ~ 32 0
17 BRHT 4b Cl* 05 05 40.09 -68 38 11.9           ~ 22 0
18 NGC 1839 Cl* 05 06 03.2754947352 -68 37 37.209733320   11.90 11.80     ~ 40 0
19 NGC 1838 Cl* 05 06 08.630 -68 26 56.61   13.20 12.93     ~ 24 0
20 NGC 1831 GlC 05 06 16.12 -64 55 06.9   11.52 11.18     ~ 167 0
21 NGC 1846 Cl* 05 07 34.900 -67 27 32.45   12.08 11.31     ~ 231 0
22 [SL63] 244 Cl* 05 07 37.540 -68 32 31.20   13.81 13.04     ~ 26 0
23 NGC 1850 Cl* 05 08 50.190 -68 45 35.65   8.84 8.96     ~ 298 1
24 ESO 119-40 Cl* 05 09 21.67 -62 22 46.9   14.98 14.25     ~ 22 0
25 NGC 1856 Cl* 05 09 30.290 -69 07 45.08   10.40 10.06     ~ 163 0
26 NGC 1858 Cl* 05 09 56.09 -68 54 06.2   9.76 9.88     ~ 84 3
27 NGC 1860 Cl* 05 10 41.140 -68 45 12.61   11.18 11.04     ~ 36 0
28 NGC 1863 Cl* 05 11 40.240 -68 43 36.01           ~ 43 0
29 NGC 1865 Cl* 05 12 24.940 -68 46 19.21   13.60 12.91     ~ 30 0
30 NGC 1866 GlC 05 13 38.920 -65 27 52.75           ~ 437 0
31 NGC 1868 GlC 05 14 36.60 -63 57 25.7           ~ 123 0
32 NGC 1898 As* 05 16 45.380 -69 39 16.76   12.62 11.86     ~ 104 0
33 KMHK 727 Cl* 05 17 49 -68 28.4   14.35 13.74     ~ 16 0
34 ESO 85-72 Cl* 05 20 05.61 -63 28 49.2   14.58 13.85     ~ 29 0
35 NGC 1928 Cl* 05 20 55.940 -69 28 34.96   13.34 12.47     ~ 68 0
36 NGC 1939 Cl* 05 21 26.82 -69 56 59.0   12.52 11.83     ~ 61 0
37 CD-68 294 As* 05 21 58 -67 57.3           ~ 112 0
38 NAME LMC Bar PoG 05 22 08 -69 23.5           ~ 343 0
39 NGC 1937 As* 05 22 29 -67 53.7           ~ 48 1
40 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 19090 0
41 KMHK 883 Cl* 05 24 13 -75 34.0   15.00 14.20     ~ 17 0
42 NGC 1948 As* 05 24 20.00 -66 24 12.0   10.81 10.61     ~ 110 0
43 2MASX J05242806-6743455 Cl* 05 24 28.068 -67 43 45.54     13.45     ~ 13 0
44 KMHK 861 Cl* 05 24 32.080 -67 40 36.11           ~ 14 0
45 LH 53 As* 05 26.1 -66 14           ~ 32 0
46 NGC 1955 As* 05 26 12 -67 29.9   8.95 8.87     ~ 66 0
47 2MASX J05283953-7337514 GlC 05 28 39.531 -73 37 51.45   14.14 13.42     ~ 52 0
48 NGC 1978 GlC 05 28 45.330 -66 14 12.04   10.7 10.70     ~ 317 0
49 KMHK 960 Cl* 05 28 48.930 -71 38 01.39   13.87 13.14     ~ 22 0
50 KMHK 952 Cl* 05 28 59.480 -68 25 11.86   14.14 13.74     ~ 14 0
51 ESO 85-91 Cl* 05 29 48.11 -63 38 59.2   13.96 13.23     ~ 25 0
52 KMHK 996 OpC 05 29 54.370 -72 03 17.97           ~ 15 0
53 NGC 2005 Cl* 05 30 08.500 -69 45 14.42   12.30 11.57     ~ 103 0
54 NGC 2004 Cl* 05 30 41.340 -67 17 21.83   9.6       ~ 281 0
55 KMHK 1035 Cl* 05 31 23.760 -72 02 27.74           ~ 12 0
56 KMHK 1046 Cl* 05 31 42.940 -72 08 49.41   13.83 13.06     ~ 21 0
57 NGC 2019 Cl* 05 31 56.48 -70 09 32.5   10.9 10.86     ~ 124 0
58 KMHK 1013 Cl* 05 32 03 -64 14.5   14.37 13.61     ~ 17 0
59 LH 72 As* 05 32.2 -66 27           ~ 33 0
60 NAME Hodge 4 GlC 05 32 25.64 -64 44 07.7     13.33     ~ 52 0
61 LH 77 As* 05 33 16 -66 59.1           ~ 33 0
62 NGC 2031 GlC 05 33 41.440 -70 59 14.54   11.09 10.83     ~ 75 0
63 NGC 2027 Cl* 05 35 00.330 -66 55 05.76   10.97 10.97     ~ 24 0
64 RMC 136 Cl* 05 38 42.396 -69 06 03.36   5.81 5.40     ~ 2236 2
65 ESO 86-22 Cl* 05 42 29.090 -65 21 46.33     13.8     ~ 44 0
66 ESO 86-26 Cl* 05 43 20 -66 15.7   14.00 13.33     ~ 20 0
67 KMHK 1283 Cl* 05 43 35.930 -66 12 26.88   14.90 14.30     ~ 17 0
68 NGC 2121 Cl* 05 48 13.190 -71 28 52.00   13.21 12.37     ~ 134 0
69 NGC 2134 Cl* 05 51 55.950 -71 05 53.57   11.05       ~ 72 0
70 NGC 2136 Cl* 05 53 01.800 -69 29 24.24   10.99 10.70     ~ 121 1
71 KMHK 1499 Cl* 05 53 24.200 -70 04 11.92   13.86 13.18     ~ 20 0
72 NGC 2173 GlC 05 57 58 -72 58.7   12.74 11.88     ~ 148 0
73 NGC 2155 Cl* 05 58 32.070 -65 28 38.62   13.41 12.60     ~ 107 0
74 NGC 2164 OpC 05 58 55.900 -68 30 58.09   10.44 10.34     ~ 127 0
75 NGC 2162 GlC 06 00 30.21 -63 43 18.2   13.38 12.70     ~ 79 0
76 KMHK 1588 Cl* 06 00 37.970 -70 04 14.31   14.90 14.18     ~ 21 0
77 ESO 121-3 Cl* 06 02 03.32 -60 31 25.6   14.91 14.04     ~ 118 0
78 ESO 86-61 Cl* 06 08 15 -62 59.3   14.94 14.15     ~ 38 0
79 NGC 2209 GlC 06 08 36.06 -73 50 07.9   13.58 13.15     ~ 116 0
80 NGC 2213 Cl* 06 10 42.000 -71 31 43.99           ~ 98 0
81 NGC 2210 GlC 06 11 31.296 -69 07 17.04   10.9 10.94     ~ 196 0
82 NGC 2214 OpC 06 12 57 -68 15.6   11.04 10.93     ~ 119 0
83 ESO 57-75 Cl* 06 13 27.3 -70 41 42   14.41 13.67     ~ 42 0
84 NAME Hodge 11 GlC 06 14 22.92 -69 50 54.9   12.57 11.93     ~ 117 0
85 KMHK 1714 Cl* 06 15 17 -73 47.1           ~ 18 0
86 NGC 2249 GlC 06 25 49 -68 55.2   12.66 12.23     ~ 72 0
87 KMHK 1758 Cl* 06 29 58 -69 20.0           ~ 17 0
88 NGC 2257 Cl* 06 30 12.62 -64 19 40.0   13.24 12.62     ~ 228 0
89 KMHK 1762 Cl* 07 07 39 -69 59.0           ~ 25 0
90 M 68 GlC 12 39 27.98 -26 44 38.6     7.96     ~ 1069 0
91 M 92 GlC 17 17 07.39 +43 08 09.4     6.52     ~ 2240 0
92 NAME Local Group GrG ~ ~           ~ 9325 0

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