Results 41 to 50 of about 10,538 (228)

Nucleosynthesis Without Computer [PDF]

open access: yesInternational Journal of Theoretical Physics, 2004
I derive completely analytically the time evolution and final abundances of the light elements (up to Be-7) formed in the big-bang nucleosynthesis.This highlights an interesting physics taking place during the formation of light elements in the early universe.
openaire   +2 more sources

Principles of cold nucleosynthesis.

open access: yes, 2021
Modern science denies the possibility of nucleosynthesis at room temperatures, considering this process as part of high temperature physics and plasma physics. However, if you look at the problem from the other side, using the concepts of low temperature
Serge Shavirin (3945863)
core   +1 more source

Direct reactions for astrophysical p-capture rates with ORRUBA and GODDESS

open access: yesFrontiers in Physics
Understanding the nucleosynthesis and energy generation in quiescent and explosive stellar burning requires a detailed understanding of reaction rates on many unstable nuclides.
S. D. Pain
doaj   +1 more source

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   +1 more source

Nucleosynthesis in the Early Galaxy [PDF]

open access: yesThe Astrophysical Journal, 2007
Recent observations of r-process-enriched metal-poor star abundances reveal a non-uniform abundance pattern for elements $Z\leq47$. Based on non-correlation trends between elemental abundances as a function of Eu-richness in a large sample of metal-poor stars, it is shown that the mixing of a consistent and robust light element primary process (LEPP ...
Montes, F.   +10 more
openaire   +3 more sources

Laboratory Magnetoplasmas as Stellar-like Environment for 7Be β-Decay Investigations Within the PANDORA Project

open access: yesUniverse
Laboratory magnetoplasmas can become an intriguing experimental environment for fundamental studies relevant to nuclear astrophysics processes. Theoretical predictions indicate that the ionization state of isotopes within the plasma can significantly ...
Eugenia Naselli   +7 more
doaj   +1 more source

Design study of a HPGe detector array for β-decay investigation in laboratory ECR plasmas

open access: yesFrontiers in Physics, 2022
In the frame of the PANDORA project, a new experimental approach aims at measuring in-plasma β-decay rate as a function of thermodynamical conditions of the environment, namely a laboratory magnetized plasma able to mimic some stellar-like conditions ...
Eugenia Naselli   +12 more
doaj   +1 more source

Nucleosynthesis in classical novae [PDF]

open access: yesNuclear Physics A, 2001
A general review of the relevance of classical novae for the chemical evolution of the Galaxy, as well as for Galactic radioactivity is presented. A special emphasis is put on the pioneering work done by Jim Truran in this field of research. The impact of recent developments in nuclear astrophysics on nova nucleosynthesis, together with the prospects ...
Hernanz, M., Jose, J., Coc, A.
openaire   +3 more sources

Isomers in the Cosmos

open access: yesAtoms, 2023
The nucleosynthesis of chemical elements has been established to be the result of a variety of different types of nuclear reactions in stars. Under the extreme temperatures and densities encountered in such environments, nuclear isomers can be populated ...
Eric B. Norman
doaj   +1 more source

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

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.
Umberto Battino   +4 more
doaj   +1 more source

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