• Thumbnail for Triple-alpha process
    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...
    21 KB (2,683 words) - 17:07, 17 June 2024
  • Thumbnail for Alpha process
    cycle of reactions called the triple-alpha process, which consumes only helium, and produces carbon. The alpha process most commonly occurs in massive...
    13 KB (1,917 words) - 15:35, 28 May 2024
  • 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...
    15 KB (1,792 words) - 18:01, 28 June 2024
  • Thumbnail for Helium flash
    nuclear fusion of large quantities of helium into carbon through the triple-alpha process in the core of low-mass stars (between 0.8 solar masses (M☉) and...
    13 KB (1,615 words) - 00:00, 1 July 2024
  • Thumbnail for Stellar nucleosynthesis
    cycle Helium fusion: The triple-alpha process The alpha process Fusion of heavier elements: Lithium burning: a process found most commonly in brown...
    37 KB (4,238 words) - 13:05, 2 June 2024
  • Thumbnail for Nuclear reaction
    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...
    20 KB (2,391 words) - 17:40, 25 June 2024
  • Thumbnail for Carbon-12
    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...
    7 KB (781 words) - 12:38, 29 June 2024
  • of research. A similar resonance increases the probability of the triple-alpha process, which is responsible for the original production of carbon. Neutrino...
    14 KB (1,676 words) - 01:49, 21 April 2024
  • Thumbnail for Red giant
    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...
    26 KB (3,355 words) - 19:26, 28 June 2024
  • Thumbnail for Alpha particle
    as alpha reactions (see triple-alpha process and alpha process). In addition, extremely high energy helium nuclei sometimes referred to as alpha particles...
    31 KB (3,862 words) - 17:33, 28 June 2024
  • Thumbnail for Horizontal branch
    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...
    14 KB (1,722 words) - 16:03, 7 September 2023
  • fusion process in stars; the triple-alpha process creates carbon-12, which captures an additional helium-4 to make oxygen-16. The neon-burning process also...
    3 KB (304 words) - 18:10, 16 August 2023
  • Thumbnail for Star system
    Picture of the Day: Triple star system (11 September 2002) NASA Astronomy Picture of the Day: Alpha Centauri system (23 March 2003) Alpha Centauri, APOD,...
    41 KB (4,555 words) - 15:33, 8 May 2024
  • Thumbnail for Carbon
    giant or supergiant star through the triple-alpha process. This requires a nearly simultaneous collision of three alpha particles (helium nuclei), as the...
    95 KB (10,852 words) - 04:01, 5 July 2024
  • Thumbnail for White dwarf
    during which it fuses 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...
    163 KB (18,594 words) - 16:17, 19 June 2024
  • Thumbnail for Sun
    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...
    169 KB (18,707 words) - 21:12, 11 July 2024
  • Thumbnail for Carbon star
    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...
    24 KB (2,252 words) - 20:13, 6 June 2024
  • Thumbnail for Star
    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...
    146 KB (16,327 words) - 18:46, 12 July 2024
  • nucleus facilitating its synthesis in stellar interiors via the triple-alpha process. He then calculated the energy of this undiscovered resonance to...
    78 KB (9,891 words) - 04:56, 26 June 2024
  • Thumbnail for Asymptotic giant branch
    undergo full fusion of elements heavier than helium. During the triple-alpha process, some elements heavier than carbon are also produced: mostly oxygen...
    26 KB (3,185 words) - 12:00, 9 July 2024
  • proceed beyond 4He due to the unbound nature of 5He and 5Li, and the triple-alpha process skips over all species between 4He and 12C, these elements are not...
    9 KB (1,069 words) - 20:51, 10 May 2024
  • Thumbnail for Atom
    combined in stars through the process of nuclear fusion to produce more of the element helium, and (via the triple-alpha process) the sequence of elements...
    124 KB (12,755 words) - 14:58, 10 July 2024
  • 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...
    21 KB (2,215 words) - 13:32, 10 June 2024
  • Thumbnail for Type II supernova
    helium, surrounding a layer of helium fusing into carbon via the triple-alpha process, surrounding layers that fuse to progressively heavier elements....
    48 KB (4,780 words) - 23:44, 16 May 2024
  • nucleosynthesis, Hoyle calculated that one particular nuclear reaction, the triple-alpha process, which generates carbon from helium, would require the carbon nucleus...
    54 KB (6,322 words) - 12:09, 4 July 2024
  • Thumbnail for List of brightest stars
    to make a detectable contribution. For example, the binary star system Alpha Centauri has the total or combined magnitude of −0.27, while its two component...
    36 KB (1,305 words) - 17:10, 25 June 2024
  • Thumbnail for BPM 37093
    which are created by thermonuclear fusion of helium nuclei in the triple-alpha process. In the 1960s, it was predicted that as a white dwarf cools, its...
    10 KB (998 words) - 00:22, 5 June 2024
  • (approximately): half-life of beryllium-8, maximum time available for the triple-alpha process for the synthesis of carbon and heavier elements in stars 84 attoseconds:...
    11 KB (1,142 words) - 01:52, 19 June 2024
  • Zhao; et al. (2009). "Imaging And Modeling Rapidly Rotating Stars: Alpha Cephei And Alpha Ophiuchi". The Astrophysical Journal. 701 (1): 209–224. arXiv:0906...
    22 KB (1,196 words) - 17:16, 25 June 2024
  • Thumbnail for Black dwarf
    supernova explosions. These will occur if pycnonuclear (density-based) fusion processes much of the star to iron, which would lower the Chandrasekhar limit for...
    10 KB (1,141 words) - 03:52, 24 June 2024