The triple-alpha process is a set of nuclear fusion reactions by which three helium-4 nuclei (alpha particles) are transformed into carbon. Helium accumulates...

cycle of reactions called the triple-alpha process, which consumes only helium, and produces carbon. The alpha process most commonly occurs in massive...

less than for two nuclei, such an event is exceptionally rare (see triple alpha process for an example very close to a three-body nuclear reaction). The...

horizontal branch, fusing helium into carbon in their cores via the triple-alpha process asymptotic-giant-branch (AGB) stars with a helium burning shell outside...

cycle Helium fusion: The triple-alpha process The alpha process Fusion of heavier elements: Lithium burning: a process found most commonly in brown...

nuclear fusion of large quantities of helium into carbon through the triple-alpha process in the core of low-mass stars (between 0.5-0.44 solar masses (M☉)...

red giant and fuse helium to carbon and oxygen in its core by the triple-alpha process. If a red giant has insufficient mass to generate the core temperatures...

the triple-alpha process is the only reaction in which 12C and heavier elements may be produced in observed quantities. The triple-alpha process, despite...

CNO cycle Helium flash Triple-alpha process Alpha process C burning Ne burning O burning Si burning s-process r-process p-process Nova Symbiotic Remnant...

of research. A similar resonance increases the probability of the triple-alpha process, which is responsible for the original production of carbon. Neutrino...

to 98.93% of element carbon on Earth; its abundance is due to the triple-alpha process by which it is created in stars. Carbon-12 is of particular importance...

Horizontal-branch stars are powered by helium fusion in the core (via the triple-alpha process) and by hydrogen fusion (via the CNO cycle) in a shell surrounding...

helium, surrounding a layer of helium fusing into carbon via the triple-alpha process, surrounding layers that fuse to progressively heavier elements....

as alpha reactions (see triple-alpha process and alpha process). In addition, extremely high energy helium nuclei sometimes referred to as alpha particles...

undergo full fusion of elements heavier than helium. During the triple-alpha process, some elements heavier than carbon are also produced: mostly oxygen...

between 0.5 and 10 M☉, helium can be transformed into carbon in the triple-alpha process that uses the intermediate element beryllium: 4He + 4He + 92 keV...

CNO cycle Helium flash Triple-alpha process Alpha process C burning Ne burning O burning Si burning s-process r-process p-process Nova Symbiotic Remnant...

CNO cycle Helium flash Triple-alpha process Alpha process C burning Ne burning O burning Si burning s-process r-process p-process Nova Symbiotic Remnant...

supernova explosions. These will occur if pycnonuclear (density-based) fusion processes much of the star to nickel-56, which decays into iron via emitting a positron...

CNO cycle Helium flash Triple-alpha process Alpha process C burning Ne burning O burning Si burning s-process r-process p-process Nova Symbiotic Remnant...

nucleosynthesis, Hoyle calculated that one particular nuclear reaction, the triple-alpha process, which generates carbon from helium, would require the carbon nucleus...

range of elements and isotopes can be produced by the s-process, because of the intervention of alpha decay steps along the reaction chain. The relative abundances...

be converted into carbon within a matter of minutes through the triple-alpha process. The Sun then shrinks to around 10 times its current size and 50...

CNO cycle Helium flash Triple-alpha process Alpha process C burning Ne burning O burning Si burning s-process r-process p-process Nova Symbiotic Remnant...

CNO cycle Helium flash Triple-alpha process Alpha process C burning Ne burning O burning Si burning s-process r-process p-process Nova Symbiotic Remnant...

CNO cycle Helium flash Triple-alpha process Alpha process C burning Ne burning O burning Si burning s-process r-process p-process Nova Symbiotic Remnant...

helium will begin to fuse to carbon and oxygen in the core by the triple-alpha process.,§ 5.9, chapter 6. When the core is degenerate helium fusion begins...

shell. The oxygen-burning process is the last nuclear reaction in the star's core which does not proceed via the alpha process. Although 16O is lighter...

nucleus facilitating its synthesis in stellar interiors via the triple-alpha process. He then calculated the energy of this undiscovered resonance to...

carbon is thought to be a product of helium fusion, specifically the triple-alpha process within a star, which giants reach near the end of their lives in...