Neutron diffusion and nucleosynthesis in an inhomogeneous big bang model
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| Formato: | Artículo científico |
| Lenguaje: | en |
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Universidad Nacional Autónoma de México
2001
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| _version_ | 1876443901779247104 |
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| author | J. F. Lara |
| author_facet | J. F. Lara |
| contents | Neutron diffusion and nucleosynthesis in an inhomogeneous big bang model J. F. Lara Física, Astronomía y Matemáticas TIONS COSMOLOGY DIFFUSION ABUNDANCES NUCLEAR REAC This article describes the production of primordial 4He nuclei in an inhomo-geneous universe. The baryon distribution is spherically symmetric and consists ofa high density inner region and a low density outer region. As the temperaturedecreases neutrons di use to the outer region until they are homogeneously dis-tributed, and protons may be redistributed depending on how fast di usion occurs.Nucleosynthesis occurs earlier in the inner region and neutrons di use back to thatregion. The rapidity of di usion determines how much 4He is ultimately produced. 2001 artículo científico 0185-1101 https://www.redalyc.org/articulo.oa?id=57101033 en http://www.redalyc.org/revista.oa?id=571 Revista Mexicana de Astronomía y Astrofísica application/pdf Universidad Nacional Autónoma de México Revista Mexicana de Astronomía y Astrofísica (México) Vol.10 |
| format | Artículo científico |
| id | redalyc_57101033 |
| institution | Redalyc |
| language | en |
| publishDate | 2001 |
| publisher | Universidad Nacional Autónoma de México |
| spellingShingle | Neutron diffusion and nucleosynthesis in an inhomogeneous big bang model J. F. Lara Física, Astronomía y Matemáticas TIONS COSMOLOGY DIFFUSION ABUNDANCES NUCLEAR REAC Neutron diffusion and nucleosynthesis in an inhomogeneous big bang model J. F. Lara Física, Astronomía y Matemáticas TIONS COSMOLOGY DIFFUSION ABUNDANCES NUCLEAR REAC This article describes the production of primordial 4He nuclei in an inhomo-geneous universe. The baryon distribution is spherically symmetric and consists ofa high density inner region and a low density outer region. As the temperaturedecreases neutrons di use to the outer region until they are homogeneously dis-tributed, and protons may be redistributed depending on how fast di usion occurs.Nucleosynthesis occurs earlier in the inner region and neutrons di use back to thatregion. The rapidity of di usion determines how much 4He is ultimately produced. 2001 artículo científico 0185-1101 https://www.redalyc.org/articulo.oa?id=57101033 en http://www.redalyc.org/revista.oa?id=571 Revista Mexicana de Astronomía y Astrofísica application/pdf Universidad Nacional Autónoma de México Revista Mexicana de Astronomía y Astrofísica (México) Vol.10 |
| title | Neutron diffusion and nucleosynthesis in an inhomogeneous big bang model |
| topic | Física, Astronomía y Matemáticas TIONS COSMOLOGY DIFFUSION ABUNDANCES NUCLEAR REAC |
| url | https://www.redalyc.org/articulo.oa?id=57101033 |