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Action of winds inside and outside of star clusters

Palous, Jan, Dale, Jim, Wünsch, Richard, Silich, Sergiy, Tenorio-Tagle, Guillermo and Whitworth, Anthony Peter 2010. Action of winds inside and outside of star clusters. Proceedings of the International Astronomical Union 6 (S270) , pp. 267-274. 10.1017/S1743921311000494

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Abstract

The feedback form pre-main sequence and young stars influences their vicinity. The stars are formed in clusters, which implies that the winds of individual stars collide with each other. Inside of a star cluster, winds thermalize a fraction of their kinetic energy, forming a very hot medium able to escape from the cluster in the form of a large-scale wind. Outside of the cluster, the cluster wind forms a shock front as it interacts with the ambient medium which is accreted onto the expanding shell. A variety of instabilities may develop in such shells, and in some cases they fragment, triggering second generation of star formation. However, if the cluster surpasses a certain mass (depending on the radius and other parameters) the hot medium starts to be thermally unstable even inside of the cluster, forming dense warm clumps. The formation of next generations of stars may start if the clumps are big enough to self-shield against stellar radiation creating cold dense cores.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Advanced Research Computing @ Cardiff (ARCCA)
Physics and Astronomy
Subjects: Q Science > QB Astronomy
Uncontrolled Keywords: stars: formation; ISM: structure; globular clusters: general; open clusters and associations: general
Additional Information: Pdf uploaded in accordance with publisher's policy at http://www.sherpa.ac.uk/romeo/issn/1743-9213/ (accessed 21/02/2014).
Publisher: Cambridge University Press
ISSN: 1743-9213
Date of First Compliant Deposit: 30 March 2016
Last Modified: 04 Jun 2017 03:29
URI: http://orca.cf.ac.uk/id/eprint/22059

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