2016MNRAS.459.4218C

Query : 2016MNRAS.459.4218C

2016MNRAS.459.4218C - Mon. Not. R. Astron. Soc., 459, 4218-4223 (2016/July-2)

No evidence for younger stellar generations within the intermediate-age massive clusters NGC 1783, NGC 1806 and NGC 411.

CABRERA-ZIRI I., NIEDERHOFER F., BASTIAN N., REJKUBA M., BALBINOT E., KERZENDORF W.E., LARSEN S.S., MACKEY A.D., DALESSANDRO E., MUCCIARELLI A., CHARBONNEL C., HILKER M., GIELES M. and HENAULT-BRUNET V.

Abstract (from CDS):

Recently, Li et al. claimed to have found evidence for multiple generations of stars in the intermediate-age clusters NGC 1783, NGC 1806 and NGC 411 in the Large and Small Magellanic Clouds. Here we show that these young stellar populations are present in the field regions around these clusters and are not likely associated with the clusters themselves. Using the same data sets, we find that the background subtraction method adopted by the authors does not adequately remove contaminating stars in the small number Poisson limit. Hence, we conclude that their results do not provide evidence of young generations of stars within these clusters.

Abstract Copyright: © 2016 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): globular clusters: general - galaxies: star clusters: general - galaxies: star clusters: individual: (NGC 1783, NGC 1806, NGC 411) - galaxies: star clusters: individual: NGC 1783, NGC 1806, NGC 411

Simbad objects: 3

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Number of rows : 3
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 411 Cl* 01 07 55.64 -71 46 03.1 13.05 12.63 12.10   11.11 ~ 107 0
2 NGC 1783 GlC 04 59 08.590 -65 59 15.84   10.9 10.93     ~ 273 0
3 NGC 1806 GlC 05 02 11.180 -67 59 05.89   11.1       ~ 165 0

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