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Transactions of the International Astronomical Union, 1988
Primordial nucleosynthesis which is responsible for the formation of the lightest elements (D, 3He, 4HE and 7Li) might be as important as the overall expansion of the Universe and the cosmic background radiation to prove the occurrence of a dense and hot phase for the Unvierse about 15 billion years ago. As recalled in many reviews (e.g. refs.
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Primordial nucleosynthesis which is responsible for the formation of the lightest elements (D, 3He, 4HE and 7Li) might be as important as the overall expansion of the Universe and the cosmic background radiation to prove the occurrence of a dense and hot phase for the Unvierse about 15 billion years ago. As recalled in many reviews (e.g. refs.
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Explosive Nucleosynthesis in Stars
Nature, 1970Recent calculations provide convincing evidence that the naturally occurring nuclei were produced in explosions. The required temperature, density and expansion rate strongly suggest that before the explosion the objects were ordinary evolved massive stars.
W D, Arnett, D D, Clayton
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Philosophical Transactions of the Royal Society of London. Series A, Mathematical and Physical Sciences, 1986
Abstract Both Big-Bang and stellar nucleosynthesis have outcomes related to the density of baryonic matter, but whereas in the first case there is a standard model that makes very precise predictions of light element abundances as a function of the mean density of baryons in the Universe, in the second case various uncertainties ...
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Abstract Both Big-Bang and stellar nucleosynthesis have outcomes related to the density of baryonic matter, but whereas in the first case there is a standard model that makes very precise predictions of light element abundances as a function of the mean density of baryons in the Universe, in the second case various uncertainties ...
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New Astronomy Reviews, 1999
Nucleosynthesis is the process by which chemical elements and their isotopes are formed. The heavy elements (carbon and heavier ones) are thought to be the result of thermonuclear burning in stars, and especially the relatively rare stars that become supernovae.
Signore, Monique, Puy, Denis
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Nucleosynthesis is the process by which chemical elements and their isotopes are formed. The heavy elements (carbon and heavier ones) are thought to be the result of thermonuclear burning in stars, and especially the relatively rare stars that become supernovae.
Signore, Monique, Puy, Denis
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Nucleosynthesis in Massive Stars
Space Science Reviews, 1993We discuss three aspects of the nucleosynthesis in massive and intermediate—mass stars during their early evolutionary phases. These are related to the CNO abundances in giant or supergiant stars, to the 26A1 yield from massive stars via stellar wind, and to the production of the s—process nuclei in massive stars.
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Physics Reports, 1993
Abstract The connection between entropy and nucleosynthesis is discussed. It is shown that the entropy per baryon is one of three parameters that characterize the end products of any type of nucleosynthesis process. The other two parameters are the neutron richness and the dynamical timescale.
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Abstract The connection between entropy and nucleosynthesis is discussed. It is shown that the entropy per baryon is one of three parameters that characterize the end products of any type of nucleosynthesis process. The other two parameters are the neutron richness and the dynamical timescale.
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Improved big bang nucleosynthesis constraints on heavy neutral leptons
Physical Review D, 2021Maksym Ovchynnikov +2 more
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