Results 11 to 20 of about 3,128 (211)

Neutron captures in stellar nucleosynthesis [PDF]

open access: yesEPJ Web of Conferences, 2023
Apart from cosmological hydrogen and helium, chemical elements in the Universe are produced in stars, during both quiescent and explosive phases. The Sun chemical distribution witnesses the pollution from already extinct stellar generations at different ...
Cristallo Sergio
doaj   +3 more sources

Trojan Horse Investigation for AGB Stellar Nucleosynthesis

open access: yesUniverse, 2022
Asymptotic Giant Branch (AGB) stars are among the most important astrophysical sites influencing the nucleosynthesis and the chemical abundances in the Universe. From a pure nuclear point of view, several processes take part during this peculiar stage of
M L Sergi   +2 more
exaly   +4 more sources

Electron Capture Cross Sections for Stellar Nucleosynthesis [PDF]

open access: yesAdvances in High Energy Physics, 2015
In the first stage of this work, we perform detailed calculations for the cross sections of the electron capture on nuclei under laboratory conditions.
P. G. Giannaka, T. S. Kosmas
doaj   +4 more sources

Mixing Uncertainties in Low-Metallicity AGB Stars: The Impact on Stellar Structure and Nucleosynthesis [PDF]

open access: yesUniverse, 2021
The slow neutron-capture process (s-process) efficiency in low-mass AGB stars (1.5 < M/M⊙ < 3) critically depends on how mixing processes in stellar interiors are handled, which is still affected by considerable uncertainties.
U Battino   +2 more
exaly   +4 more sources

Insights into AGB Nucleosynthesis Thanks to Spectroscopic Abundance Measurements in Intrinsic and Extrinsic Stars

open access: yesUniverse, 2022
The foundations of stellar nucleosynthesis have been established more than 70 years ago. Since then, much progress has been made, both on the theoretical side, with stellar evolution and nucleosynthesis models of increasing complexity, using more and ...
Sophie Van Eck   +2 more
doaj   +2 more sources

Nucleosynthesis in Stellar Explosions [PDF]

open access: yes, 1984
The final evolution and explosion of stars from 10 M⊙ to 106 M⊙ are reviewed with emphasis on factors affecting the expected nucleosynthesis. We order our paper in a sequence of decreasing mass. If, as many suspect, the stellar birth function was peaked towards larger masses at earlier times (see e.g., Silk 1977; but also see Palla, Salpeter, and ...
Woosley, S. E.   +2 more
openaire   +2 more sources

Neutron-Driven Nucleosynthesis in Stellar Plasma

open access: yesFrontiers in Physics, 2022
A large uncertainty for the slow neutron capture nucleosynthesis (s-process) models is caused by the amount of neutrons available to the process itself.
R. Spartà   +24 more
doaj   +3 more sources

Planetary Nebulae, Tracers of Stellar Nucleosynthesis [PDF]

open access: yesEAS Publications Series, 2008
13 pages, to appear in "StellarNucleosynthesis: 50yearsafterB2FH", eds. C. Charbonnel and J.-P.
Stasinska, Grazyna, G. Stasińska
openaire   +4 more sources

Nucleosynthesis and Stellar Evolution

open access: yesAstrophysics and Space Science, 2002
Two of the basic building blocks of galaxies are stars and the interstellar medium. The evolution of the abundance composition in the latter and especially the enrichment of heavy elements as a function of space and time reflects in turn the history of star formation and the lifetimes of the diverse contributing stellar objects.
Thielemann, F. K.   +8 more
core   +3 more sources

The NuGrid AGB Evolution and Nucleosynthesis Data Set [PDF]

open access: yesUniverse, 2022
Asymptotic Giant Branch (AGB) stars play a key role in the chemical evolution of galaxies. These stars are the fundamental stellar site for the production of light elements such as C, N and F, and half of the elements heavier than Fe via the slow neutron
Umberto Battino   +4 more
doaj   +2 more sources

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