The 'collect and collapse' model
Date: 06 May 2010
A schematic view of the so-called 'collect and collapse' model. In this scenario the formation of a new generation of stars is triggered by the expansion of an HII region which is being ionised and blown by a massive star from a previous generation. This model was first proposed by Elmegreen & Lada in 1977.
Last Update: 14 May 2010
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Herschel spectrum of the Galactic Centre 
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