File: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.
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Source Illustration by contributor (After Modelling Supernovae with PHOENIX.)
Author R.J. Hall
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18 December 2006

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Date/TimeThumbnailDimensionsUserComment
current15:49, 19 December 2006Thumbnail for version as of 15:49, 19 December 2006759 × 567 (146 KB)RJHallWrong file. This one is the correct version.
15:24, 19 December 2006Thumbnail for version as of 15:24, 19 December 2006758 × 566 (145 KB)RJHallUpdated image.
16:04, 18 December 2006Thumbnail for version as of 16:04, 18 December 2006758 × 566 (145 KB)RJHallCore-collapse scenario.
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