SIMBAD references

2018MNRAS.473L..11R - Mon. Not. R. Astron. Soc., 473, L11-L15 (2018/January-1)

Forming clusters within clusters: how 30 Doradus recollapsed and gave birth again.


Abstract (from CDS):

The 30 Doradus nebula in the Large Magellanic Cloud (LMC) contains the massive starburst cluster NGC 2070 with a massive and probably younger stellar sub clump at its centre: R136. It is not clear how such a massive inner cluster could form several million years after the older stars in NGC 2070, given that stellar feedback is usually thought to expel gas and inhibit further star formation. Using the recently developed 1D feedback scheme WARPFIELD to scan a large range of cloud and cluster properties, we show that an age offset of several million years between the stellar populations is in fact to be expected given the interplay between feedback and gravity in a giant molecular cloud with a density >=500 cm–3 due to re-accretion of gas on to the older stellar population. Neither capture of field stars nor gas retention inside the cluster have to be invoked in order to explain the observed age offset in NGC 2070 as well as the structure of the interstellar medium around it.

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

Journal keyword(s): ISM: individual objects: 30 Doradus - ISM: kinematics and dynamics - Magellanic Clouds - galaxies: star clusters: individual: R136 - galaxies: star formation - galaxies: star formation

Simbad objects: 9

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