File:Evolved star fusion shells.svg

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DescriptionEvolved star fusion shells.svg	This diagram shows a simplified (not to scale) cross-section of a massive, evolved star (with a mass greater than eight times the Sun.) Where the pressure and temperature permit, concentric shells of Hydrogen (H), Helium (He), Carbon (C), Neon/Magnesium (Ne), Oxygen (O) and Silicon (Si) plasma are burning inside the star. The resulting fusion by-products rain down upon the next lower layer, building up the shell below. As a result of Silicon fusion, an inert core of Iron (Fe) plasma is steadily building up at the center. Once this core reaches the Chandrasekhar mass, the iron can no longer sustain its own mass and it undergoes a collapse. This can result in a supernova explosion.
Date	15 August 2007, 11:42 (UTC)
Source	R. J. Hall
Author	User:Rursus
Other versions	Original

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File history

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	Date/Time	Dimensions	User	Comment
current	18:17, 10 May 2020	550 × 550 (13 KB)	Andel	Reverted to version as of 05:14, 13 April 2011 (UTC); Newer version broke rendering
	01:51, 10 May 2020	512 × 512 (7 KB)	TSamuel	Better compression
	05:14, 13 April 2011	550 × 550 (13 KB)	Trex2001	minor fixes
	10:23, 12 April 2011	550 × 550 (13 KB)	Trex2001	color corrections
	11:42, 15 August 2007	550 × 550 (23 KB)	Rursus	{{Information \|Description=This diagram shows a simplified cross-section of a massive, evolved star (with a mass greater than eight times the Sun.) Where the pressure and temperature permit, concentric shells of Hydrogen (H), Helium (He), Carbon (C), Neon