2017MNRAS.470L..77P

Query : 2017MNRAS.470L..77P

2017MNRAS.470L..77P - Mon. Not. R. Astron. Soc., 470, L77-L81 (2017/September-1)

Observational hints of a real age spread in the young LMC star cluster NGC 1971.

PIATTI A.E. and COLE A.

Abstract (from CDS):

We report that the serendipitous young Large Magellanic Cloud cluster NGC 1971 exhibits an extended main-sequence turn-off (eMSTO) possibly originated mostly by a real age spread. We used CT1 Washington photometry to produce a colour-magnitude diagram (CMD) with the fiducial cluster features. From its eMSTO, we estimated an age spread of ∼170 Myr (observed age range 100-280 Myr), once observational errors, stellar binarity, overall metallicity variations and stellar rotation effects were subtracted in quadrature from the observed age width.

Abstract Copyright: © 2017 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): techniques: photometric - galaxies: individual: LMC - galaxies: star clusters: general - galaxies: star clusters: individual: NGC 1971 - galaxies: star clusters: individual: NGC 1971

Simbad objects: 8

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Number of rows : 8
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 1755 Cl* 04 55 16.390 -68 12 23.12   10.00 9.85     ~ 80 0
2 NGC 1850 Cl* 05 08 50.190 -68 45 35.65   8.84 8.96     ~ 298 1
3 NGC 1856 Cl* 05 09 30.290 -69 07 45.08   10.40 10.06     ~ 163 0
4 NAME LMC Bar PoG 05 22 08 -69 23.5           ~ 343 0
5 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 19090 0
6 NGC 1969 Cl* 05 26 35.300 -69 50 42.69   12.66 12.46     ~ 22 0
7 NGC 1971 Cl* 05 26 45.58 -69 51 03.2   12.01 11.90     ~ 27 0
8 NGC 1972 Cl* 05 26 48.80 -69 50 17.2   12.95 12.62     ~ 23 0

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