Results 11 to 20 of about 173,669 (191)

Precision Mass Measurements ofCd129131and Their Impact on Stellar Nucleosynthesis via the Rapid Neutron Capture Process [PDF]

open access: hybridPhysical Review Letters, 2015
Masses adjacent to the classical waiting-point nuclide ^{130}Cd have been measured by using the Penning-trap spectrometer ISOLTRAP at ISOLDE/CERN. We find a significant deviation of over 400 keV from earlier values evaluated by using nuclear beta-decay ...
D. Atanasov   +22 more
openalex   +3 more sources

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   +2 more sources

Multiple Stellar Populations and Their Evolution in Globular Clusters: A Nucleosynthesis Perspective [PDF]

open access: green, 2016
This paper presents a review of the characteristics of the multiple stellar populations observed in globular clusters, and of their possible origin. The current theoretical issues and the many open questions are discussed.
C. Charbonnel
semanticscholar   +4 more sources

Phosphorus-rich stars with unusual abundances are challenging theoretical predictions [PDF]

open access: yesNature Communications, 2020
Current models of Galactic chemical evolution under predict the phosphorus we observe in our Solar System. Here, the authors show the discovery of 15 phosphorus-rich stars with a peculiar abundance pattern that challenges the present stellar ...
Thomas Masseron   +6 more
doaj   +2 more sources

A New Look at Carbon Abundances in Planetary Nebulae. IV. Implications for Stellar Nucleosynthesis [PDF]

open access: bronze, 2000
This paper is the fourth and final report on a project designed to study carbon abundances in a sample of planetary nebulae representing a broad range in progenitor mass and metallicity. We present newly acquired optical spectrophotometric data for three
R. B. C. Henry   +2 more
openalex   +3 more sources

Atomic Data for Stellar Nucleosynthesis [PDF]

open access: bronzeProceedings of the International Astronomical Union, 2015
Christopher Sneden   +3 more
openalex   +2 more sources

Neutron captures in stellar nucleosynthesis [PDF]

open access: yesEPJ Web of Conferences, 2023
Apart from cosmological hydrogen and helium, chemical elements in the Universe are produced in stars, during both quiescent and explosive phases. The Sun chemical distribution witnesses the pollution from already extinct stellar generations at different ...
Cristallo Sergio
doaj   +1 more source

The Stellar β-decay Rate of 134Cs and Its Impact on the Barium Nucleosynthesis in the s-process [PDF]

open access: yesAstrophysical Journal Letters, 2021
We have calculated the stellar β-decay rate of the important s-process branching point 134Cs based on the state-of-the-art shell model calculations. At typical s-process temperatures (T ∼ 0.2–0.3 GK), our new rate is one order of magnitude lower than the
Kuo-Ang Li   +7 more
semanticscholar   +1 more source

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