The Core Collapse Phase at the End of the Life

question 211

Multiple Choice

The core collapse phase at the end of the life of a massive star is triggered when

• A) the helium flash and thermal pulses have expelled the star's envelope.
• B) the density reaches the threshold for electron degeneracy pressure to become important.
• C) nuclear fusion has produced a significant amount of iron in its core.
• D) the core becomes as dense as an atomic nucleus.

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Social System

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