Results 71 to 80 of about 13,955 (228)

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

Explosive nucleosynthesis: prospects [PDF]

open access: yesPhysics Reports, 2000
15 pages, no figures, Elsevier Science volume honoring David N ...
openaire   +2 more sources

Review of Analytical Lithium Detection and Quantification Methods Along the Lithium Value Chain

open access: yesApplied Research, Volume 4, Issue 6, December 2025.
This article reviews a selection of suitable state‐of‐the‐art analytical methods for different scales of spatial resolution and detection of lithium for a variety of lithium‐bearing materials along the lithium value chain. The various materials differ greatly in terms of their lithium content by more than 5 orders of magnitude and also vary in their ...
Nico Kropp   +2 more
wiley   +1 more source

Neutrino-nucleus reactions and their role in supernova nucleosynthesis

open access: yes, 2020
Neutrino reactions on nuclei play important roles for the dynamics of supernovae and their associated nucleosynthesis. This manuscript summarizes the current status in deriving the relevant cross sections for supernova neutrinos and discusses the ...
Sieverding, A.   +5 more
core   +1 more source

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   +1 more source

Big bang nucleosynthesis

open access: yesNuclear Physics B - Proceedings Supplements, 1995
13 pages, including 4 figures, to appear in the Proceedings of the Workshop on ``Theoretical and Phenomenological Aspects of Underground Physics" (TAUP'95), Suppl. Nucl. Phys. B (M. Fatas, ed.)
openaire   +2 more sources

Two Micron‐Size Dark Dimensions

open access: yesFortschritte der Physik, Volume 73, Issue 8, August 2025.
Abstract Two extra dimensions of micron scale might simultaneously address the gauge and cosmological hierarchy problems. In this paper various observational bounds in scenarios with one and two large extra dimensions are examined, to see if they are compatible with the micron scale.
Luis A. Anchordoqui   +2 more
wiley   +1 more source

The impact of the carbon fusion rate on the properties of superbursts

open access: yesAstronomy & Astrophysics
Context. Superbursts are very energetic explosions in the crust of neutron stars in low-mass X-ray binaries (LMXBs). These are triggered by unstable carbon burning at T ≤ 109 K.
Nava-Callejas M., Goriely S., Chamel N.
doaj   +1 more source

Kilonova Emission and Heavy Element Nucleosynthesis

open access: yesUniverse, 2023
The binary neutron star merger observed and localized on 17 August 2017 by the LIGO and Virgo gravitational interferometers and by numerous telescopes on the ground and in orbit linked in an unambiguous way the coalescence of double neutron stars with ...
Elena Pian
doaj   +1 more source

Revisiting 7Be weak and radiative transition rates in Big Bang nucleosynthesis: implications for the primordial lithium problem

open access: yesAstronomy & Astrophysics
Context. The primordial 7Li abundance predicted by standard Big Bang nucleosynthesis (BBN) exceeds the value inferred from old metal-poor stars by a factor of approximately three to four. In this model, most primordial 7Li is produced as 7Be in the early
Taioli Simone   +2 more
doaj   +1 more source

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