Results 121 to 130 of about 52,754 (240)

Coulomb screening in linear coasting nucleosynthesis

, 2015
We investigate the impact of coulomb screening on primordial nucleosynthesis in a universe having scale factor that evolves linearly with time. Coulomb screening affects primordial nucleosynthesis via enhancement of thermonuclear reaction rates.
Lohiya, Daksh, Singh, Parminder
core  

Quark-hadron phase transition in the early Universe: Isothermal baryon-number fluctuations and primordial nucleosynthesis [PDF]

, 1988
G. M. Fuller, G. J. Mathews, C. R. Alcock   +2 more
openalex   +1 more source

Impact of Newly Measured Nuclear Reaction Rates on ²⁶Al Ejected Yields from Massive Stars

Universe
Over the last three years, the rates of all the main nuclear reactions involving the destruction and production of 26Al in stars (26Al(n, p)26Mg, 26Al(n, α)23Na, 26Al(p, γ)27Si and 25Mg(p, γ)26Al) have been re-evaluated thanks to new high-precision ...
Umberto Battino, Lorenzo Roberti, Thomas V. Lawson, Alison M. Laird, Lewis Todd   +4 more
doaj   +1 more source

On relative supernova rates and nucleosynthesis roles [PDF]

, 1989
W. David Arnett, David N. Schramm, James W. Truran   +2 more
openalex   +1 more source

The origins of neutron-capture elements in globular cluster M22

Frontiers in Astronomy and Space Sciences
IntroductionThe chemical abundances of metal poor (MP) stars in globular clusters provide valuable information for constraining their evolutionary scenarios.MethodsUsing both main r-process and weak r-process patterns, we fit the abundances of s-poor ...
Muhammad Zeshan Ashraf, Wenyuan Cui, Hongjie Li   +2 more
doaj   +1 more source

Constraints on Baryon and Lepton Number Asymmetries of the Early Universe from Primordial Nucleosynthesis [PDF]

, 1984
N. Terasawa, K. Satô
openalex   +1 more source

A Study of the Origin of Two High-Speed R-Process-Enriched Stars by the Abundance Decomposition Approach

Universe
TYC 622-742-1 and TYC 1193-1918-1 are evolved metal-poor (MP) high-speed stars with r-enhanced characteristics discovered in the Milky Way (MW) halo. The study of these halo stars is important for clarification of and knowledge about their origin.
Muhammad Zeshan Ashraf, Wenyuan Cui, Hongjie Li, Jianrong Shi   +3 more
doaj   +1 more source

The Initial-Final Mass Relation from Carbon Stars in Open Clusters

Galaxies
Recently, Marigo et al, identified a kink in the initial-final mass relation around initial masses of Mini≈1.65−2.10M⊙, based on Gaia DR2 and EDR3 data for white dwarfs in open clusters aged 1.5–2.5 Gyr.
Carlos Abia, Inma Domínguez, Paola Marigo, Sergio Cristallo, Oscar Straniero   +4 more
doaj   +1 more source

The r-, s-, and p-Processes in Nucleosynthesis [PDF]

, 1994
B. S. Meyer
openalex   +1 more source

Measuring neutron capture cross sections of radioactive nuclei: From activations at the FZK Van de Graaff to direct neutron captures in inverse kinematics with a storage ring at TRIUMF. [PDF]

Eur Phys J A Hadron Nucl, 2023
Dillmann I, Kester O, Baartman R, Chen A, Junginger T, Herwig F, Kaltchev D, Lennarz A, Planche T, Ruiz C, Vassh N.   +10 more
europepmc   +1 more source