Suchergebnisse
Suchergebnisse:
In higher-mass stars, the dominant energy production process is the CNO cycle, which is a catalytic cycle that uses nuclei of carbon, nitrogen and oxygen as intermediaries and in the end produces a helium nucleus as with the proton-proton chain. CNO reaction is a very temperature sensitive process. [3] Under typical conditions found in stars ...
The CNO cycle (for carbon – nitrogen – oxygen; sometimes called Bethe–Weizsäcker cycle after Hans Albrecht Bethe and Carl Friedrich von Weizsäcker) is one of the two known sets of fusion reactions by which stars convert hydrogen to helium, the other being the proton–proton chain reaction (p–p cycle), which is more efficient at the Sun 's core te...
23. März 2015 · At what temperature would the energy generation rates of the PP-Chain and CNO cycles be roughly equivalent? The dependences are so vastly different that I am wondering how and by what equations they could be related.
The proton–proton chain, also commonly referred to as the p–p chain, is one of two known sets of nuclear fusion reactions by which stars convert hydrogen to helium. It dominates in stars with masses less than or equal to that of the Sun , [2] whereas the CNO cycle , the other known reaction, is suggested by theoretical models to ...
24. Okt. 2018 · At about the same time von Weizsäcker and independently Bethe proposed an alternative mechanism, namely the carbon–nitrogen–oxygen cycle (CNO cycle) 4, a closed-loop chain of nuclear...
25. Nov. 2020 · The nuclear fusion mechanisms that are active in stars, the pp chain and the CNO cycle, are associated with the production of energy and the emission of a rich spectrum of electron-flavour...
Bei Sternen mit Massen bis etwa 1,5 Sonnenmassen (M ☉) spielt die Proton-Proton-Reaktion eine wichtigere Rolle bei der Energieumwandlung als der CNO-Zyklus. Etwa werden durch sie mehr als 98 % der Leuchtkraft der Sonne erzeugt.
