2014MNRAS.443.3594B


Query : 2014MNRAS.443.3594B

2014MNRAS.443.3594B - Mon. Not. R. Astron. Soc., 443, 3594-3600 (2014/October-1)

Constraining globular cluster formation through studies of young massive clusters - III. A lack of gas and dust in massive stellar clusters in the LMC and SMC.

BASTIAN N. and STRADER J.

Abstract (from CDS):

Scenarios that invoke multiple episodes of star formation within young globular clusters (GCs) to explain the observed chemical and photometric anomalies in GCs require that clusters can retain the stellar ejecta of the stars within them and accrete large amounts of gas from their surroundings. Hence, it should be possible to find young massive clusters in the local Universe that contain significant amounts (>10 per cent) of the cluster mass of gas and/or dust within them. Recent theoretical studies have suggested that clusters in the Large Magellanic Cloud (LMC) with masses in excess of 104 M and ages between 30 and ∼ 300 Myr should contain such gas reservoirs. We have searched for Hi gas within 12 LMC (and 1 Small Magellanic Cloud) clusters and also for dust using Spitzer 70 and 160 µm images. No clusters were found to contain gas and/or dust. While two of the clusters have Hi at the same (projected) position and velocity, the gas does not appear to be centred on the clusters, but rather part of nearby clouds or filaments, suggesting that the gas and cluster are not directly related. This lack of gas (<1 per cent of the stellar mass) is in strong tension with model predictions, and may be due to higher stellar feedback than has been previously assumed or due to the assumptions used in the previous calculations.

Abstract Copyright: © 2014 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society (2014)

Journal keyword(s): Magellanic Clouds - galaxies: star clusters: general

Simbad objects: 16

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Number of rows : 16
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 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 9910 1
2 NGC 330 Cl* 00 56 20.59 -72 27 12.5 9.37 9.76 9.55   8.89 ~ 377 0
3 NAME Magellanic Clouds GrG 03 00 -71.0           ~ 6025 1
4 NGC 1711 Cl* 04 50 37.320 -69 59 01.72   11.22 11.10     ~ 110 0
5 NGC 1818 GlC 05 04 13.300 -66 26 05.47           ~ 243 0
6 NGC 1831 GlC 05 06 17.4 -64 55 11   11.52 11.18     ~ 156 0
7 NGC 1847 Cl* 05 07 08.200 -68 58 15.49   12.508 12.469     ~ 88 0
8 NGC 1850 Cl* 05 08 50.190 -68 45 35.65   8.84 8.96     ~ 243 1
9 NGC 1856 Cl* 05 09 30.290 -69 07 45.08   10.40 10.06     ~ 142 0
10 NGC 1866 GlC 05 13 38.920 -65 27 52.75           ~ 398 0
11 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 15542 1
12 NGC 2031 GlC 05 33 41.440 -70 59 14.54   11.09 10.83     ~ 70 0
13 NGC 2136 Cl* 05 53 01.800 -69 29 24.24   10.99 10.70     ~ 113 1
14 NGC 2157 Cl* 05 57 35.430 -69 11 48.67   10.35 10.16     ~ 120 0
15 NGC 2164 OpC 05 58 55.900 -68 30 58.09   10.44 10.34     ~ 114 0
16 NGC 2214 OpC 06 12 57 -68 15.6   11.04 10.93     ~ 119 0

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2021.09.29-04:04:13

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