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The Birth, Evolution and Death of Star Clusters
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A dense-enough gas-accumulation evolves, over a few Myr of intensifying star formation, to an embedded cluster If it contains a sufficient amount of mass, O stars form and explosively expel the remaining gas, whereas poorer clusters reduce their embryonic gas content more gradually as mentioned in this paper.Abstract:
A dense-enough gas-accumulation evolves, over a few Myr of intensifying star formation, to an embedded cluster If it contains a sufficient amount of mass, O stars form and explosively expel the remaining gas, whereas poorer clusters reduce their embryonic gas content more gradually The sudden expulsion of gas unbinds most of a rich cluster, but a significant fraction of it can condense by two-body interactions to become an open cluster despite a star-formation efficiency as low as 30 per cent Poorer clusters survive their gradual mass loss more easily, but have short, relaxation-limited life-times Pleiades-like clusters may thus form as nuclei of expanding OB associations, by filling their tidal radii and having large (1-2 pc) core-radii A 'main-sequence' of clusters is thus established Ultimately, a cluster dies an explosive death through the ever shortening relaxation time, and leaves a remnant that consists of about 4-10 stars arranged in a highly hierarchical and thus long-lived system Dynamical mass segregation in very young clusters is extremely rapid, and heats a cluster substantially, which is partially off-set by the cooling from the disruption of primordial binariesread more
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Star formation in unbound giant molecular clouds: the origin of OB associations?
TL;DR: In this paper, the formation of star clusters in an unbound giant molecular cloud was investigated, where the supporting kinetic energy is twice as large as the cloud's self-gravity.
References
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Book
Dynamical evolution of globular clusters
TL;DR: The Princeton Legacy Library uses the latest print-on-demand technology to again make available previously out-of-print books from the distinguished backlist of Princeton University Press as mentioned in this paper.
BookDOI
The Origin of Stars and Planetary Systems
TL;DR: In this paper, the authors present a theory of low-mass star formation and the role of embedded clusters in star formation, which is based on the theory of magnetic fields and star formation.
Journal ArticleDOI
The Formation of Binary Stars: IAU Symposium 200
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