Formation of new stellar populations from gas accreted by massive young star clusters
نویسندگان
چکیده
منابع مشابه
Embedded Stellar Populations towards Young Massive Star Formation Regions
We present deep, wide-field J, H and Ks images taken with IRIS2 on the Anglo Australian Telescope, towards the massive star formation region G305.2+0.2. Combined with 3.6, 4.5, 5.8 and 8.0μm data from the GLIMPSE survey on the Spitzer Space Telescope, we investigate the properties of the embedded stellar populations. After removing contamination from foreground stars we separate the sources bas...
متن کاملRecurrent gas accretion by massive star clusters, multiple stellar populations and mass thresholds for spherical stellar systems
We explore the gravitational influence of pressure supported stellar systems on the internal density distribution of a gaseous environment. We conclude that compact massive star clusters with masses & 10 M⊙ act as cloud condensation nuclei and are able to accrete gas recurrently from a warm interstellar medium which may cause further star formation events and account for multiple stellar popula...
متن کاملStellar Collisions in Young Clusters: Formation of (Very) Massive Stars?
In young star clusters, the density can be high enough and the velocity dispersion low enough for stars to collide and merge with a significant probability. This has been suggested as a possible way to build up the highmass portion of the stellar mass function and as a mechanism leading to the formation of one or two very massive stars (M∗ > 150M⊙) through a collisional runaway. I quickly revie...
متن کاملStellar Populations , Butcher - Oemler Effect , Star Formation in Clusters Bianca
In this brief overview of the stellar populations of galaxies in clusters I highlight some of the most recent results, including the downsizing of the k+a population and the star formation–local density relation. I conclude discussing some open questions regarding the interpretation of the observational results, and speculating on the current meaning of the words “primordial” and “environmental”.
متن کاملStellar-Dynamics of Young Star Clusters
The stellar-dynamical evolution of bound star clusters during the first few Myr is dominated by binary-binary and binary-star interactions, the rapid sinking of the most massive stars to the centre of the clusters and mass loss from evolving stars. The consequences of these processes for the binary and stellar population in clusters, and for the star clusters as a whole, are studied by followin...
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ژورنال
عنوان ژورنال: Nature
سال: 2016
ISSN: 0028-0836,1476-4687
DOI: 10.1038/nature16493