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Originally Posted by Arneb
Tobin Dax wrote:
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Alright, I'm confused. The first step in the PPI chain creates deuterium, which then gets made into helium3. I'm pretty sure that the PPI chain happens outside of BBN, so would you please explain your answer to me, Arneb?
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Ouch, I hope I did not overstep my knowledge here. What I was getting at, I read that there is never any net production of Deuterium in stars or SN, so in effect the Universe is always just using up the primordial Deuterium without ever substituting for it - Deuterium being burned to Helium, especially in young stars and brown dwarfs.
I cannot put my finger on the source of this. If you insist on the point, I can research it again and tell you. Sorry if I got that one wrong. There is a bit of pressure for speed in this quiz - part of the fun - and I was bringing the question up from memory.
George wrote
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While we're on the subject...Who is best known for helping establish nucleosynthesis? [His determination of the energy level of excited Carbon I believe was his triumph.]
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My first anwer to that one was:
That would be Hans Bethe, together with Carl-Friedrich von Weizsäcker.
But since there is that hint: That would be Frank Hoyle - he coined the phrase "Big Bang" to ridicule the concept.
So which is true? Back later, gotta get to work now...
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(edited to fix eroneous placement of my response)
And of course if you mean who worked out pretty much the whole sequence in which elements were produced in the Big Bang and after that the honors would be shared by BBFH in a classic paper. Side question (I know its not my turn). Who were BBFH?