Results 11 to 20 of about 161,423 (202)
Positron accumulations from stellar nucleosynthesis
The predominant fusion chain in stellar nucleosynthesis produces positron and neutrino byproducts in equal amounts. An extremely high neutrino flux can be directly measured, but the unobservable, yet equally high flux of positrons is traditionally ...
Joseph Caleb Philipps +4 more
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Electron Capture Cross Sections for Stellar Nucleosynthesis [PDF]
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 +5 more sources
Nucleosynthesis and Stellar Evolution
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 +9 more sources
Planetary Nebulae, Tracers of Stellar Nucleosynthesis [PDF]
13 pages, to appear in "StellarNucleosynthesis: 50yearsafterB2FH", eds. C. Charbonnel and J.-P.
Stasinska, Grazyna, G. Stasińska
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Fundamentals of stellar evolution and nucleosynthesis [PDF]
The theory of stellar structure and evolution plays a pivotal role in modern astrophysics. Stellar evolution calculations are used to determine the ages and, to a lesser extent, distances of stars, which are critical to our knowledge of the history and ...
Vescovi Diego
doaj +2 more sources
Nucleosynthesis and future stellar abundance determinations
AbstractFor Abstract see ChemInform Abstract in Full Text.
B. Gustafsson
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The NuGrid AGB Evolution and Nucleosynthesis Data Set [PDF]
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
θ-dependence of light nuclei and nucleosynthesis
We investigate the impact of the QCD vacuum at nonzero θ on the properties of light nuclei, Big Bang nucleosynthesis, and stellar nucleosynthesis. Our analysis starts with a calculation of the θ-dependence of the neutron-proton mass difference and ...
Dean Lee +4 more
doaj +2 more sources
Stellar Evolution, SN Explosion, and Nucleosynthesis
42 pages, 17 figures; Invited chapter for Handbook of X-ray and Gamma-ray Astrophysics (Eds. C. Bambi and A. Santangelo, Springer Singapore, expected in 2022).
Maeda, Keiichi
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EXPLOSIVE NUCLEOSYNTHESIS AT STRONG STELLAR MAGNETIZATION
Synthesis of iron group nuclides is considered for the ultra-magnetized astrophysical plasma in supernovae. Magnetic modification of nuclear structure is shown to shift maximum of nucleosynthesis products towards smaller mass numbers enhancing titanium ...
V. N. Kondratyev, Yu. V. Korovina
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