The helium flash results from the:
A) sudden release of energy in strong magnetic fields near a sunspot.
B) electron degeneracy or quantum crowding in the core of a low-mass red giant star.
C) sudden onset of nuclear reactions at the end of the protostar.
D) high temperature in the helium core of a blue (spectral class O or B) supergiant star.
Correct Answer:
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Q211: When a star leaves the main sequence
Q219: In comparing a young red giant star
Q220: Which description characterizes the early stages of
Q221: If electrons are collectively compressed into a
Q221: Degeneracy occurs when
A) electrons inside a star
Q222: Electron degeneracy, which is a result of
Q225: A star of which solar mass would
Q230: What is the "safety valve" that prevents
Q234: The Pauli exclusion principle
A) prevents high-mass stars
Q236: What is the "safety valve" that operates
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