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Astronomy Quiz 5
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What happens if the core is hot enough for fusion?
New reactions ignite
core size stable
shell fusion continues
outer layers readjust
What happens when the fuel runs out of the core?
Core collapses
outer layers escape
Is the core hot enough for fusion?
For less than 1/4 solar mass star, never
In larger stars, "triple-alpha" process
What happens in the Asymptotic-Giant Branch? Is this the end of the line?
The helium fusion dies out; dead carbon core
cycle repeats
At this point, solar mass star collapses to a white dwarf
Outer layers expand as a "planetary nebula"
Author
bheight1
ID
12748
Card Set
Astronomy Quiz 5
Description
Astronomy Quiz 5
Updated
2010-04-01T02:27:00Z
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