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Triggered formation and collapse of molecular cloud cores

Whitworth, Anthony Peter 2007. Triggered formation and collapse of molecular cloud cores. Presented at: Symposium S237 at Proceedings of the International Astronomical Union, Prague, Czech Republic, 14-18 August 2006. Proceedings of the International Astronomical Union. , vol. S237. Cambridge University Press, pp. 251-257. 10.1017/S1743921307001561

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First I discuss the dynamics of core formation in two scenarios relevant to triggered star formation, namely the fragmentation of shock-compressed layers created by colliding turbulent flows and the fragmentation of shells swept up by expanding nebulae. Second I discuss the influence of thermodynamics on the core mass spectrum, on determining which cores are ‘pre-stellar’ (i.e. destined to spawn stars) and on the minimum mass for a pre-stellar core. Third, I discuss the properties of pre-existing cores whose collapse has been triggered by an increase in external pressure, and compare the results with observations of collapsing pre-stellar cores and evaporating gaseous globules (EGGs)

Item Type: Conference or Workshop Item (Paper)
Date Type: Publication
Status: Published
Schools: Physics and Astronomy
Subjects: Q Science > QB Astronomy
Uncontrolled Keywords: Stars: formation; ISM: clouds; ISM: bubbles; instabilities; turbulence
Publisher: Cambridge University Press
ISSN: 17439213
Last Modified: 04 Jun 2017 07:40

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