Results 91 to 100 of about 3,128 (211)

Nuclear astrophysics at Gran Sasso Laboratory: the LUNA experiment

EPJ Web of Conferences, 2018
LUNA is an experimental approach for the study of nuclear fusion reactions based on an underground accelerator laboratory. Aim of the experiment is the direct measurement of the cross section of nuclear reactions relevant for stellar and primordial ...
Cavanna Francesca
doaj   +1 more source

Stellar Abundance Analyses: Constraints on Nucleosynthesis and Chemical Evolution?

, 2007
Recent advances in the determination of stellar abundances and their impact on the study of nucleosynthesis and the chemical evolution of galaxies are discussed.
C. Abia
core   +1 more source

Nucleosynthesis in relation to cosmology [PDF]

, 2018
While the primordial (or Big Bang) nucleosynthesis delivers important clues about the conditions in the high red-shift universe (termed far-field cosmology), the nucleosynthesis of the heavy elements beyond iron by the r-process or the s-process deliver ...
El-Eid, Mounib F., Mounib F El Eid
core   +1 more source

Heavy Element Nucleosynthesis

EPJ Web of Conferences, 2018
This contribution deals with the important subject of the nucleosynthesis of heavy elements in the Galaxy. After an overview of several observational features, the physical processes responsible mainly for the formation of heavy elements will be ...
El Eid Mounib F.
doaj   +1 more source

Electron Capture Cross Sections for Stellar Nucleosynthesis

, 2020
In the first stage of this work, we perform detailed calculations for the cross sections of the electron capture on nuclei under laboratory conditions.
T S Kosmas, P G Giannaka
core  

Re-examining Neutron Capture and Stellar Weak Rates of 97Mo under Astrophysical Conditions

Cumhuriyet Science Journal
This paper presents a re-analysis of neutron capture and stellar weak interaction rates of 97Mo under astrophysical conditions. The Maxwellian-averaged cross sections (MACS), neutron capture rates, and β^- decay/positron capture rates are investigated ...
Jameel-un Nabi, Abdul Kabir, Abdul Muneem   +2 more
doaj   +1 more source

Stellar Evolution and Nucleosynthesis of Post-AGB Stars [PDF]

, 2001
I discuss recent new models of post-Asymptotic Giant Branch stellar evolution. These models aim to clarify the evolutionary origin and status of a variety of hydrogen-deficient post-AGB stars such as central stars of planetary nebulae of Wolf-Rayet spectral type, PG1159 stars or Sakurai's object.
openaire   +2 more sources

Essentials of Nucleosynthesis and Theoretical Nuclear Astrophysics

, 2020
Studies in nucleosynthesis and nuclear astrophysics are highly interdisciplinary, encompassing such fields as nuclear physics, stellar structure and evolution, hydrostatics and hydrodynamics, differential equations for following isotopic abundance ...
Rauscher, Thomas
core   +1 more source

Studying stars by going underground: the LUNA experiment at Gran Sasso Laboratory

EPJ Web of Conferences, 2014
Cross sections of astrophysically relevant reactions are essential ingredients for element nucleosynthesis, energy generation and neutrino fluxes in stellar environments.
Guglielmetti Alessandra
doaj   +1 more source

Direct study of the 21Ne(p,γ)22Na reaction deep underground at LUNA [PDF]

EPJ Web of Conferences
The 21Ne(p,γ)22Na reaction is part of the NeNa cycle, which contributes to hydrogen burning and nucleosynthesis in various stellar environments. The major astrophysical impact of this reaction is the production of the unstable nucleus of 22Na, recognized
Sidhu Ragandeep Singh
doaj   +1 more source