Lecture 24: AGB Stars and Massive Star Evolution
Lecture 24: AGB Stars and Massive Star Evolution
Lecture 24: AGB Stars and Massive Star Evolution
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Nuclear Burning: the triple α process<br />
4 He + 4 He -> 8 Be<br />
8 Be+ 4 He -> 12 C<br />
q = k ρ 2 T 40<br />
Releasing 7.275 Mev (compared 25 Mev<br />
for Hydrogen burning)<br />
When enough carbon accumulates:<br />
12 CO + 4 He -> 16 O<br />
Releasing 7.162 Mev<br />
Sunday, May 1, 2011
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