What is the Bethe-Gamov theory of solar energy?
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M$2 Answers
http://en.wikipedia.org/wiki/Alpher%E2%80%93Bethe%E2%80%93Gamow_paper#Bethe.27s_name
Alpher's studies also had no connection with Bethe's work on nuclear fusion reactions, for which Bethe won the Nobel Prize. His primary achievement was the elimination of most of the possible pathways for hydrogen fusion in stars; the remaining processes were the proton-proton reaction in lower-mass stars and the carbon-nitrogen-oxygen cycle in more massive stars. Subsequent research over 70+ years has not disproven Bethe's conclusions.
http://nobelprize.org/nobel_prizes/physics/laureates/1967/bethe-bio.html
http://www.wisegeek.com/what-is-stellar-nucleosynthesis.htm
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M$
According to "en.wikipedia.org":
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This theory suggests that the Big Bang would create hydrogen, helium and heavier elements in correct proportions as to explain their abundance in the early universe. While the original theory neglected a number of processes important to the formation of heavy elements, subsequent developments showed that Big Bang nucleosynthesis is consistent with the observed constraints on all primordial elements.
The theory proposed that all atomic nuclei are produced by successive capture of neutrons, one mass unit at a time, but later studies challenged the universality of the successive capture theory. This discovery meant that the successive capture theory could not account for higher elements.
It was eventually recognized that most of the heavy elements observed in the present universe are the result of stellar nucleosynthesis in stars, a theory largely developed by Bethe himself. However, the Alpher-Bethe-Gamow theory does correctly explain the relative abundances of the isotopes of hydrogen and helium.
Today, nucleosynthesis is widely considered to have taken place in two stages: formation of hydrogen and helium according to the Alpher–Bethe–Gamow theory, and stellar nucleosynthesis of higher elements according to Bethe's later theories.
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Therefore, the Alpher-Bethe-Gamow theory is used today to support one stage of the Big Bang nucleosynthesis.
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M$
Confusing. What was the theory then?
As far as I can tell, there is no "Bethe-Gamow theory" without Alpher. The original idea was that all of the modern elements were created by successive capture of neutrons by lighter nuclei in the first few minutes after the Big Bang. However, it was later discovered that there are no stable nuclei with 5 or 8 nucleons, making the creation of elements heavier then helium through successive neutron capture extremely unlikely (minute amounts of lithium and possibly even some beryllium managed to form before the unstable precursor nuclei decayed). Alpher's and Gamow's calculations were correct in terms of hydrogen and helium formation, but that is all.
http://www.aps.org/publications/apsnews/200804/physicshistory.cfm