Multiple Choice
A main-sequence star of 25 solar masses has about 12.5 times the luminosity of a 10 solar mass star. This is because:
A) the more massive star has a hotter core, and therefore nuclear burning proceeds more rapidly
B) massive stars have more convection in their cores, which heats up the material there
C) the massive star has more hydrogen to burn
D) the massive star has more carbon, which speeds up the CNO cycle
E) the massive star is probably younger than the 10 solar mass star
Correct Answer:
Verified
Correct Answer:
Verified
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