2001MNRAS.324..367J

Query : 2001MNRAS.324..367J

2001MNRAS.324..367J - Mon. Not. R. Astron. Soc., 324, 367-380 (2001/June-3)

Young star clusters in the Large Magellanic Cloud: NGC 1805 and 1818.

JOHNSON R.A., BEAULIEU S.F., GILMORE G.F., HURLEY J., SANTIAGO B.X., TANVIR N.R. and ELSON R.A.W.

Abstract (from CDS):

We present colour-magnitude diagrams for two rich (~104M☉) Large Magellanic Cloud star clusters with ages ~107yr, constructed from optical and near-infrared data obtained with the Hubble Space Telescope. These data are part of an HST project to study LMC clusters with a range of ages. In this paper we investigate the massive star content of the young clusters, and determine the cluster ages and metallicities, paying particular attention to Be-star and blue-straggler populations and evidence of age spreads. We compare our data with detailed stellar-population simulations to investigate the turn-off structure of ~25Myr stellar systems, highlighting the complexity of the blue-straggler phenomenon.

Abstract Copyright: The Royal Astronomical Society

Journal keyword(s): blue stragglers - stars: emission-line, Be - Magellanic Clouds - galaxies: star clusters

Simbad objects: 13

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Number of rows : 13
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 NGC 121 GlC 00 26 49.0 -71 32 10   11.2 11.24     ~ 330 0
2 NGC 330 Cl* 00 56 18.55 -72 27 45.1 9.37 9.76 9.55   8.89 ~ 445 0
3 NGC 1466 GlC 03 44 32.71 -71 40 18.0   11.6 11.59     ~ 166 0
4 HD 268850 AB* 05 02 21.4730341272 -66 06 38.294439372   11.83 11.55 12.43   ~ 89 0
5 NGC 1805 GlC 05 02 21.690 -66 06 39.43           ~ 115 0
6 NGC 1818 GlC 05 04 13.300 -66 26 05.47           ~ 279 0
7 Cl* NGC 1818 ROB D1 * 05 04 32.5 -66 24 51           ~ 10 0
8 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 19090 0
9 NGC 2004 Cl* 05 30 41.340 -67 17 21.83   9.6       ~ 281 0
10 NGC 2100 Cl* 05 42 07.200 -69 12 26.99           ~ 195 0
11 NGC 2257 Cl* 06 30 12.62 -64 19 40.0   13.24 12.62     ~ 228 0
12 M 21 OpC 18 04 10.1 -22 30 00           ~ 157 0
13 Cl* NGC 1818 ROB D12 * ~ ~   13.52 13.65     B 8 0

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