Image:Core collapse scenario.png

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[edit] 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.

[edit] Licensing

I, the copyright holder of this work, hereby publish it under the following licenses:
GNU head Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation license, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled "GNU Free Documentation license".

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In short: you are free to distribute and modify the file as long as you attribute its author(s) or licensor(s).
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File history

Click on a date/time to view the file as it appeared at that time.

Date/TimeDimensionsUserComment
current15:49, 19 December 2006759×567 (146 KB)RJHall (Wrong file. This one is the correct version.)
15:24, 19 December 2006758×566 (145 KB)RJHall (Updated image.)
16:04, 18 December 2006758×566 (145 KB)RJHall (Core-collapse scenario. )
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