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--
Evolution off the main sequence (=> giant)
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Degenerate
Matter
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Planetary
Nebulae and White Dwarfs
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Binary
Star Evolution (Disks, Novae, etc.)
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Massive
Star Evolution and Supernovae
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Q.
Massive stars cannot generate energy through iron fusion because:
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iron fusion requires very high densities.
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stars contain very little iron.
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no star can get high enough for iron
fusion.
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iron is the most tightly bound of all
nuclei.
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massive stars go supernova before they
create an iron core
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