Image:Core collapse scenario.png

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Summary

Description	Simplified core collapse scenario: (a) A massive, evolved star has onion-layered shells of elements undergoing fusion. An inert iron core is formed from the fusion of Silicon in the inner-most shell. (b) This iron core reaches Chandrasekhar-mass and starts to collapse, with the outer core (black arrows) moving at supersonic velocity (shocked) while the denser inner core (white arrows) travel sub-sonically; (c) The inner core compresses into neutrons and the gravitational energy is converted into neutrinos. (d) The infalling material bounces off the nucleus and forms an outward-propagating shock wave (red). (e) The shock begins to stall as nuclear processes drain energy away, but it is re-invigorated by interaction with neutrinos. (f) The material outside the inner core is ejected, leaving behind only a degenerate remnant.
Source	Illustration by contributor (After Modelling Supernovae with PHOENIX.)
Date	December 18, 2006
Author	R.J. Hall
Permission ( Reusing this image)	Per license below.

Licensing

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File history

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	Date/Time	Dimensions	User	Comment
current	15:49, 19 December 2006	759×567 (146 KB)	RJHall	(Wrong file. This one is the correct version.)
	15:24, 19 December 2006	758×566 (145 KB)	RJHall	(Updated image.)
	16:04, 18 December 2006	758×566 (145 KB)	RJHall	(Core-collapse scenario. )

File links

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Supernova

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