Multiple Choice
What is a helium flash?
A) The ignition of helium shell burning in a high-mass star with a carbon core.
B) A sudden brightening of a low-mass star,detectable from Earth by observing spectral lines of helium.
C) It is another name for the helium fusion reaction.
D) The sudden onset of helium fusion in the core of a low-mass star.
Correct Answer:
Verified
Correct Answer:
Verified
Q8: Which stars have convective cores?<br>A)low-mass stars<br>B)intermediate-mass stars<br>C)high-mass
Q9: The following questions refer to the H-R
Q10: The following questions refer to the sketch
Q11: The helium fusion process results in the
Q12: Choose from the list below for the
Q14: Do you think it is possible that
Q15: Why is a 1 solar-mass red giant
Q16: Briefly explain why high-mass stars have shorter
Q17: Our Sun will end its life in
Q18: Which element has the lowest mass per